<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:81873119-bf83-41a2-bed6-5ed10ce37f24,g:f4ae0947-6f8a-4d49-9383-988822ed59ba-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.fiserv.com/role/ConsolidatedStatementsofIncome" xlink:type="simple" xlink:href="fi-20241231.xsd#ConsolidatedStatementsofIncome"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/ConsolidatedStatementsofIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_3bbf2761-ebef-48c3-9426-268fe8ef12e9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_063f394e-730a-4426-a6fb-2f4f13203c02" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_3bbf2761-ebef-48c3-9426-268fe8ef12e9" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_063f394e-730a-4426-a6fb-2f4f13203c02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_f4edefa9-442c-4d71-9a42-6f1273869b37" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_3bbf2761-ebef-48c3-9426-268fe8ef12e9" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_f4edefa9-442c-4d71-9a42-6f1273869b37" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_8c0f8bbd-0d88-463a-bab4-6eac3247d065" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_3bbf2761-ebef-48c3-9426-268fe8ef12e9" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_8c0f8bbd-0d88-463a-bab4-6eac3247d065" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_51744fd8-5072-42fd-aabe-b26adc77ca19" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_b81480c8-b498-414e-8475-7c4225eb204d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_51744fd8-5072-42fd-aabe-b26adc77ca19" xlink:to="loc_us-gaap_Revenues_b81480c8-b498-414e-8475-7c4225eb204d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_e1bb7f37-db9c-4beb-9e92-4ffd86687118" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_51744fd8-5072-42fd-aabe-b26adc77ca19" xlink:to="loc_us-gaap_CostsAndExpenses_e1bb7f37-db9c-4beb-9e92-4ffd86687118" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0ca1db5c-2326-4f31-832a-83e3c322aef4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_d6a9f3f5-02cf-45a4-9589-ea07d1d3cc38" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0ca1db5c-2326-4f31-832a-83e3c322aef4" xlink:to="loc_us-gaap_OperatingIncomeLoss_d6a9f3f5-02cf-45a4-9589-ea07d1d3cc38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_2a7f9cd5-1ecc-40b3-9081-2c56c82d574c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0ca1db5c-2326-4f31-832a-83e3c322aef4" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_2a7f9cd5-1ecc-40b3-9081-2c56c82d574c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_a3c9d974-cf13-40b1-be1a-c05cd43fbdea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0ca1db5c-2326-4f31-832a-83e3c322aef4" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_a3c9d974-cf13-40b1-be1a-c05cd43fbdea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_2542607c-86c9-4aab-a72f-5a96fadfbd89" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_52f4a32f-c5b7-41f2-b3e5-3dcff9941bce" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_2542607c-86c9-4aab-a72f-5a96fadfbd89" xlink:to="loc_us-gaap_ProfitLoss_52f4a32f-c5b7-41f2-b3e5-3dcff9941bce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_ca1947bd-ec97-4c8a-a035-c214b4203a24" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_2542607c-86c9-4aab-a72f-5a96fadfbd89" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_ca1947bd-ec97-4c8a-a035-c214b4203a24" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_a15d83f2-8576-44ab-8f2b-f6ba3bf5bfbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_7cd3ae8f-cb6c-4730-abf0-7dea00138b7f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_a15d83f2-8576-44ab-8f2b-f6ba3bf5bfbf" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_7cd3ae8f-cb6c-4730-abf0-7dea00138b7f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_9f04ecb4-551f-45db-bef6-eb7302c5a9b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_a15d83f2-8576-44ab-8f2b-f6ba3bf5bfbf" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_9f04ecb4-551f-45db-bef6-eb7302c5a9b7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_847bee43-9faf-408f-bef5-7b40e6750a51" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_a15d83f2-8576-44ab-8f2b-f6ba3bf5bfbf" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_847bee43-9faf-408f-bef5-7b40e6750a51" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/ConsolidatedStatementsofComprehensiveIncome" xlink:type="simple" xlink:href="fi-20241231.xsd#ConsolidatedStatementsofComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/ConsolidatedStatementsofComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_5ca931de-d8d7-4efc-b723-57b86401b1e8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_0e42546f-656b-4af6-9879-d379c51faefd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_5ca931de-d8d7-4efc-b723-57b86401b1e8" xlink:to="loc_us-gaap_ProfitLoss_0e42546f-656b-4af6-9879-d379c51faefd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_d53e8958-7199-4d1c-8f77-d70f19f44d2e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_5ca931de-d8d7-4efc-b723-57b86401b1e8" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_d53e8958-7199-4d1c-8f77-d70f19f44d2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_f74d5624-9ae9-40ad-a1e6-e3d9cac1c5d2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_70ad68dd-aa83-44b5-a882-58c2c83addfe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_f74d5624-9ae9-40ad-a1e6-e3d9cac1c5d2" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_70ad68dd-aa83-44b5-a882-58c2c83addfe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_cd770658-4c6d-4fc9-87fd-bacbbd771bc8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_f74d5624-9ae9-40ad-a1e6-e3d9cac1c5d2" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_cd770658-4c6d-4fc9-87fd-bacbbd771bc8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_5851daf3-5a22-4bad-ba3a-72363e73166e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_f74d5624-9ae9-40ad-a1e6-e3d9cac1c5d2" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_5851daf3-5a22-4bad-ba3a-72363e73166e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax_f2863044-ca37-4fde-824c-ae66ca9fd0a7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax_f2863044-ca37-4fde-824c-ae66ca9fd0a7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax_85ed5d4a-27aa-4efb-98cc-8a6cd35d410f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax_85ed5d4a-27aa-4efb-98cc-8a6cd35d410f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_38bb9bf9-36db-4b15-bf72-0840cdb05634" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_38bb9bf9-36db-4b15-bf72-0840cdb05634" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax_20612c7a-2ea0-4f50-9c05-c730131e8049" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax_20612c7a-2ea0-4f50-9c05-c730131e8049" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax_d0a966ee-3f32-41a4-bf23-368a886c0ab6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationBeforeTax_d0a966ee-3f32-41a4-bf23-368a886c0ab6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_aedc60ca-5d38-4bb6-b71c-117c2fdcb826" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_aedc60ca-5d38-4bb6-b71c-117c2fdcb826" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax_2b2ba896-2780-4df6-8ca8-9dacd38277dc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax_2b2ba896-2780-4df6-8ca8-9dacd38277dc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_f55b3204-552b-487c-9bbe-5ef039afec0f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax_f55b3204-552b-487c-9bbe-5ef039afec0f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax_f04cf643-2ec7-4ddd-9b70-ed4426deb860" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_002d269e-7bae-41fa-9e5d-3f812a5b35af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax_f04cf643-2ec7-4ddd-9b70-ed4426deb860" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="fi-20241231.xsd#ConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4dcaeef6-f142-48cd-a2f4-001a08073b20" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_552534cb-8573-4e83-bc29-573c26333d6e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4dcaeef6-f142-48cd-a2f4-001a08073b20" xlink:to="loc_us-gaap_StockholdersEquity_552534cb-8573-4e83-bc29-573c26333d6e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_0d33b4f2-fbb4-4a34-ba45-f57c5c14250b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4dcaeef6-f142-48cd-a2f4-001a08073b20" xlink:to="loc_us-gaap_MinorityInterest_0d33b4f2-fbb4-4a34-ba45-f57c5c14250b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_b2fdabe0-39f6-4937-a32d-6823f985349a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_05153143-a1b4-444f-af66-a0fa6e6904d5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b2fdabe0-39f6-4937-a32d-6823f985349a" xlink:to="loc_us-gaap_LiabilitiesCurrent_05153143-a1b4-444f-af66-a0fa6e6904d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_a8b14ad2-8ebd-42dc-b8e1-39def7ad4bb3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b2fdabe0-39f6-4937-a32d-6823f985349a" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_a8b14ad2-8ebd-42dc-b8e1-39def7ad4bb3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_ddfac4eb-9bd4-4ffa-a7f7-254433532f80" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b2fdabe0-39f6-4937-a32d-6823f985349a" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_ddfac4eb-9bd4-4ffa-a7f7-254433532f80" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_5c1887d0-d2b8-48fb-9509-54a14c18a332" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b2fdabe0-39f6-4937-a32d-6823f985349a" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_5c1887d0-d2b8-48fb-9509-54a14c18a332" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_753e2cbc-4039-4cc0-b04b-e8dc2bc6d9fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b2fdabe0-39f6-4937-a32d-6823f985349a" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_753e2cbc-4039-4cc0-b04b-e8dc2bc6d9fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_0e09bba7-0625-4534-a06b-c18cb5456502" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_6ed324ef-7082-47b0-85d5-c67780e12a77" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_0e09bba7-0625-4534-a06b-c18cb5456502" xlink:to="loc_us-gaap_PreferredStockValue_6ed324ef-7082-47b0-85d5-c67780e12a77" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValueOutstanding_7d0123a6-0d52-4922-9104-bfcecc726294" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValueOutstanding"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_0e09bba7-0625-4534-a06b-c18cb5456502" xlink:to="loc_us-gaap_CommonStockValueOutstanding_7d0123a6-0d52-4922-9104-bfcecc726294" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_f410c491-bd1c-4864-8810-5bd6c0e76109" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_0e09bba7-0625-4534-a06b-c18cb5456502" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_f410c491-bd1c-4864-8810-5bd6c0e76109" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_758675c3-bb14-42f3-b085-a99c8274ffdd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_0e09bba7-0625-4534-a06b-c18cb5456502" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_758675c3-bb14-42f3-b085-a99c8274ffdd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_e43e6af2-52c8-4b8d-bb3c-1b1312e1a664" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_0e09bba7-0625-4534-a06b-c18cb5456502" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_e43e6af2-52c8-4b8d-bb3c-1b1312e1a664" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_67fb89a1-9dc9-4035-ac98-d5ea54d2c8ab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_0e09bba7-0625-4534-a06b-c18cb5456502" xlink:to="loc_us-gaap_TreasuryStockCommonValue_67fb89a1-9dc9-4035-ac98-d5ea54d2c8ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_bb03f7de-e316-4980-a519-4cc9ef77a7e9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_81507c5e-abc2-4ae1-b756-a066b3111d72" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_bb03f7de-e316-4980-a519-4cc9ef77a7e9" xlink:to="loc_us-gaap_Liabilities_81507c5e-abc2-4ae1-b756-a066b3111d72" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_274391d7-8d73-4409-a93d-f07bd3da55bc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_bb03f7de-e316-4980-a519-4cc9ef77a7e9" xlink:to="loc_us-gaap_CommitmentsAndContingencies_274391d7-8d73-4409-a93d-f07bd3da55bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_f6860265-1ae0-49c3-b7bc-364a0b7481f5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_bb03f7de-e316-4980-a519-4cc9ef77a7e9" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_f6860265-1ae0-49c3-b7bc-364a0b7481f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ff4d5508-e2f7-4c95-af51-f6bbc470bcef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_bb03f7de-e316-4980-a519-4cc9ef77a7e9" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ff4d5508-e2f7-4c95-af51-f6bbc470bcef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_54451865-e8d1-4755-8b0f-5a89d1b46580" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_5754013f-b998-42b3-9426-948387554b82" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_54451865-e8d1-4755-8b0f-5a89d1b46580" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_5754013f-b998-42b3-9426-948387554b82" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_09b9f8e3-ab08-412c-87b9-151e79631d2b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_54451865-e8d1-4755-8b0f-5a89d1b46580" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_09b9f8e3-ab08-412c-87b9-151e79631d2b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_6d93be35-ee00-4632-933b-258d969d9b64" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_54451865-e8d1-4755-8b0f-5a89d1b46580" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_6d93be35-ee00-4632-933b-258d969d9b64" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SettlementAssetsCurrent_4c3628af-ab4f-430b-80e0-e3d2afd316c1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SettlementAssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_54451865-e8d1-4755-8b0f-5a89d1b46580" xlink:to="loc_us-gaap_SettlementAssetsCurrent_4c3628af-ab4f-430b-80e0-e3d2afd316c1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_62c6b4b1-34e7-4566-832f-eb5a2acc94b8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_dd7f39f6-8a60-4a3d-a9b7-38830feaa624" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_62c6b4b1-34e7-4566-832f-eb5a2acc94b8" xlink:to="loc_us-gaap_AssetsCurrent_dd7f39f6-8a60-4a3d-a9b7-38830feaa624" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_b6f506a7-c6c9-4e00-920d-543ceffd157c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_62c6b4b1-34e7-4566-832f-eb5a2acc94b8" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_b6f506a7-c6c9-4e00-920d-543ceffd157c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_831cafa2-38c3-45b2-b544-4f890a27bbe6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_62c6b4b1-34e7-4566-832f-eb5a2acc94b8" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_831cafa2-38c3-45b2-b544-4f890a27bbe6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_340a6121-1f67-4222-934f-b8ee2f9ff5b5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_62c6b4b1-34e7-4566-832f-eb5a2acc94b8" xlink:to="loc_us-gaap_Goodwill_340a6121-1f67-4222-934f-b8ee2f9ff5b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostNet_5ef6256d-b0ec-45a3-baac-305cc074f30f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalizedContractCostNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_62c6b4b1-34e7-4566-832f-eb5a2acc94b8" xlink:to="loc_us-gaap_CapitalizedContractCostNet_5ef6256d-b0ec-45a3-baac-305cc074f30f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_9ddef13a-3b5f-45db-941a-28f53ef68a95" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityMethodInvestments"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_62c6b4b1-34e7-4566-832f-eb5a2acc94b8" xlink:to="loc_us-gaap_EquityMethodInvestments_9ddef13a-3b5f-45db-941a-28f53ef68a95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_a22dde8a-a880-4db7-8e1a-acd9e528d4a1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_62c6b4b1-34e7-4566-832f-eb5a2acc94b8" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_a22dde8a-a880-4db7-8e1a-acd9e528d4a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_c33683b8-51dd-4835-ae3d-d5787e7fbcc5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_24c3936b-1d8e-4d8d-aad3-510f1d6492e0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_c33683b8-51dd-4835-ae3d-d5787e7fbcc5" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_24c3936b-1d8e-4d8d-aad3-510f1d6492e0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_077ca84f-8488-4daa-adf9-1e0254db9388" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_c33683b8-51dd-4835-ae3d-d5787e7fbcc5" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_077ca84f-8488-4daa-adf9-1e0254db9388" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_b2369d30-b6c8-4548-b79a-282dc1bd03f9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_c33683b8-51dd-4835-ae3d-d5787e7fbcc5" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_b2369d30-b6c8-4548-b79a-282dc1bd03f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SettlementLiabilitiesCurrent_40444276-64cb-4285-944a-93f33f7a7b55" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SettlementLiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_c33683b8-51dd-4835-ae3d-d5787e7fbcc5" xlink:to="loc_us-gaap_SettlementLiabilitiesCurrent_40444276-64cb-4285-944a-93f33f7a7b55" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/ConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="fi-20241231.xsd#ConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/ConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_09c695f2-f567-4538-9f03-9a7be5446d95" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_ee150330-7273-4972-b9be-2e5a03f6b0f5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_09c695f2-f567-4538-9f03-9a7be5446d95" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_ee150330-7273-4972-b9be-2e5a03f6b0f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f6fc85fd-e0c5-4d02-b602-8b7b8d16f165" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_09c695f2-f567-4538-9f03-9a7be5446d95" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f6fc85fd-e0c5-4d02-b602-8b7b8d16f165" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_91498c0b-470c-4249-a7cb-28279cd9b59c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_09c695f2-f567-4538-9f03-9a7be5446d95" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_91498c0b-470c-4249-a7cb-28279cd9b59c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a0f90201-ccd1-4b23-8fb8-5b21bc244882" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_09c695f2-f567-4538-9f03-9a7be5446d95" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a0f90201-ccd1-4b23-8fb8-5b21bc244882" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_a84e1a86-cc83-457f-bc3c-fb01dca037ce" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_a84e1a86-cc83-457f-bc3c-fb01dca037ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_84088480-efbf-48d5-9838-ee8dd1689fbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_84088480-efbf-48d5-9838-ee8dd1689fbf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_c9d0c49a-6052-403a-afcf-1bc4367053cc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_c9d0c49a-6052-403a-afcf-1bc4367053cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsMinorityInterest_4e2a8e9a-2921-47ca-9147-7fc4b44d5b92" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfDividendsMinorityInterest"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_us-gaap_PaymentsOfDividendsMinorityInterest_4e2a8e9a-2921-47ca-9147-7fc4b44d5b92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_f3af6acc-e1a3-41bd-8182-a25fd68b4728" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_f3af6acc-e1a3-41bd-8182-a25fd68b4728" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToMinorityShareholders_fe124965-9645-49b4-8cb3-e5cdeac883d6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToMinorityShareholders"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_us-gaap_PaymentsToMinorityShareholders_fe124965-9645-49b4-8cb3-e5cdeac883d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_ProceedsFromPaymentsForSettlementActivity_5fb9f77b-e20f-483b-ae47-f41b3be574da" xlink:href="fi-20241231.xsd#fi_ProceedsFromPaymentsForSettlementActivity"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_fi_ProceedsFromPaymentsForSettlementActivity_5fb9f77b-e20f-483b-ae47-f41b3be574da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_PaymentsForRepurchaseOfCommonStockAndPaymentsRelatedToTaxWithholdingForShareBasedCompensation_f885c7f4-b834-47a9-9acd-2cfe5e1302d2" xlink:href="fi-20241231.xsd#fi_PaymentsForRepurchaseOfCommonStockAndPaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_fi_PaymentsForRepurchaseOfCommonStockAndPaymentsRelatedToTaxWithholdingForShareBasedCompensation_f885c7f4-b834-47a9-9acd-2cfe5e1302d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_8d99e7af-7626-412b-85aa-0122afe05857" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebt"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_8d99e7af-7626-412b-85aa-0122afe05857" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_da842329-a2dc-4652-9fd7-3d57622ea322" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity_da842329-a2dc-4652-9fd7-3d57622ea322" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_fdef0c13-7b9d-47c9-83af-73d0b162440b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfFinancingCosts"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a512e0dd-7052-4ab5-b420-f72bba8524bf" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_fdef0c13-7b9d-47c9-83af-73d0b162440b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_af394899-37b7-4beb-8f52-b5350f52f2f2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_257942f7-c1ea-4d92-9ba1-93d154fff5a6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_af394899-37b7-4beb-8f52-b5350f52f2f2" xlink:to="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_257942f7-c1ea-4d92-9ba1-93d154fff5a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_163e2730-5d86-4c7e-ab06-f65db7552b44" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireInvestments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_af394899-37b7-4beb-8f52-b5350f52f2f2" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments_163e2730-5d86-4c7e-ab06-f65db7552b44" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_15c0152c-c9d8-4e56-b8dd-a17b759f2259" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_af394899-37b7-4beb-8f52-b5350f52f2f2" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_15c0152c-c9d8-4e56-b8dd-a17b759f2259" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSalesOfAssetsInvestingActivities_b042b862-a4f8-4f24-b4ca-eb93ea61e772" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromSalesOfAssetsInvestingActivities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_af394899-37b7-4beb-8f52-b5350f52f2f2" xlink:to="loc_us-gaap_ProceedsFromSalesOfAssetsInvestingActivities_b042b862-a4f8-4f24-b4ca-eb93ea61e772" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_PaymentsForMerchantCashAdvances_183bde7b-9725-44d5-abd1-d4e04a141d2d" xlink:href="fi-20241231.xsd#fi_PaymentsForMerchantCashAdvances"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_af394899-37b7-4beb-8f52-b5350f52f2f2" xlink:to="loc_fi_PaymentsForMerchantCashAdvances_183bde7b-9725-44d5-abd1-d4e04a141d2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_c9c1f567-e585-4bb3-8419-0df1741b71ba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_af394899-37b7-4beb-8f52-b5350f52f2f2" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_c9c1f567-e585-4bb3-8419-0df1741b71ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_51bb674c-ce91-4d42-8014-80aef1417488" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_af394899-37b7-4beb-8f52-b5350f52f2f2" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_51bb674c-ce91-4d42-8014-80aef1417488" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfEquitySecuritiesFvNi_5b8df32a-25bd-42f2-9199-a88310dfcff4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromSaleOfEquitySecuritiesFvNi"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_af394899-37b7-4beb-8f52-b5350f52f2f2" xlink:to="loc_us-gaap_ProceedsFromSaleOfEquitySecuritiesFvNi_5b8df32a-25bd-42f2-9199-a88310dfcff4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionLossBeforeTax_0926b3a2-be02-4bfd-9b0f-c647ff14cb62" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ForeignCurrencyTransactionLossBeforeTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_ForeignCurrencyTransactionLossBeforeTax_0926b3a2-be02-4bfd-9b0f-c647ff14cb62" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_553ab297-79b0-4482-82cd-3e5786249df5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_553ab297-79b0-4482-82cd-3e5786249df5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_2647a52c-48a5-47e3-b191-f27afcbe56f2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_2647a52c-48a5-47e3-b191-f27afcbe56f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_7a2665f3-6c94-4e91-ad69-c08e727490e2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_7a2665f3-6c94-4e91-ad69-c08e727490e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_51f17f43-5442-4e91-81d4-fa4eddd0c905" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_51f17f43-5442-4e91-81d4-fa4eddd0c905" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_195f641c-d797-42cd-b97f-4cfe7d78627c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerAsset"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_195f641c-d797-42cd-b97f-4cfe7d78627c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_57a908b4-7844-4f07-95cd-32331f997ac2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityMethodInvestmentDividendsOrDistributions"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_57a908b4-7844-4f07-95cd-32331f997ac2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_6f9d931c-b6be-4fb2-8867-52aa519f787e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_ProfitLoss_6f9d931c-b6be-4fb2-8867-52aa519f787e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_5b2e27e2-e7fd-4c57-a286-6387a1246497" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_5b2e27e2-e7fd-4c57-a286-6387a1246497" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_793af167-facc-40c4-9a3f-09a72f7f3d9c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_793af167-facc-40c4-9a3f-09a72f7f3d9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_AmortizationOfAcquisitionRelatedIntangibleAssets_3cf8a884-367a-43e3-999c-3f12188a012f" xlink:href="fi-20241231.xsd#fi_AmortizationOfAcquisitionRelatedIntangibleAssets"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_fi_AmortizationOfAcquisitionRelatedIntangibleAssets_3cf8a884-367a-43e3-999c-3f12188a012f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_a1c31783-e168-4f63-9c07-c0d4455df37f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_a1c31783-e168-4f63-9c07-c0d4455df37f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_14cc1fdd-a9f5-4390-8a58-23995cdb4e72" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_14cc1fdd-a9f5-4390-8a58-23995cdb4e72" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_AmortizationOfDebtIssuanceCostsDiscountsAndOther_0eddea7e-6fe7-448b-9819-5f4fbd0a13d4" xlink:href="fi-20241231.xsd#fi_AmortizationOfDebtIssuanceCostsDiscountsAndOther"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_fi_AmortizationOfDebtIssuanceCostsDiscountsAndOther_0eddea7e-6fe7-448b-9819-5f4fbd0a13d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherDepreciationAndAmortization_94cb91b6-8990-4f12-9bb2-20259034baaa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherDepreciationAndAmortization"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_OtherDepreciationAndAmortization_94cb91b6-8990-4f12-9bb2-20259034baaa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_bb45f982-9a6b-40dc-9be2-499a1c9f7e01" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_bb45f982-9a6b-40dc-9be2-499a1c9f7e01" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_45960187-a98c-4548-b01f-f01af0ddff29" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_350a82f7-cfd8-4cf3-bdfc-5bbe3447ee5f" xlink:to="loc_us-gaap_ShareBasedCompensation_45960187-a98c-4548-b01f-f01af0ddff29" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesScheduleofCashandCashEquivalentsDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#SummaryofSignificantAccountingPoliciesScheduleofCashandCashEquivalentsDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesScheduleofCashandCashEquivalentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_26a8ffb6-b648-461c-9347-80ed2eb32d96" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_dd6baeeb-5dc2-4c0b-b7d9-213eba2ff356" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_26a8ffb6-b648-461c-9347-80ed2eb32d96" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_dd6baeeb-5dc2-4c0b-b7d9-213eba2ff356" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_SettlementAssetsCurrentCashAndCashEquivalents_30f897b1-f688-4021-b5dd-fcf9128d3464" xlink:href="fi-20241231.xsd#fi_SettlementAssetsCurrentCashAndCashEquivalents"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_26a8ffb6-b648-461c-9347-80ed2eb32d96" xlink:to="loc_fi_SettlementAssetsCurrentCashAndCashEquivalents_30f897b1-f688-4021-b5dd-fcf9128d3464" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_ce3613ed-861f-4479-b709-7a8eb47c6bae" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_26a8ffb6-b648-461c-9347-80ed2eb32d96" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_ce3613ed-861f-4479-b709-7a8eb47c6bae" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesPrepaidExpensesDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#SummaryofSignificantAccountingPoliciesPrepaidExpensesDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesPrepaidExpensesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_19c18237-ca74-4e72-8fa0-f0a5264e73e9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossCurrent_d118192e-eda4-4e43-b3c1-aed88eb43304" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_19c18237-ca74-4e72-8fa0-f0a5264e73e9" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossCurrent_d118192e-eda4-4e43-b3c1-aed88eb43304" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousCurrent_a6ed29ed-8cbd-489a-93e1-f35a88dc03f8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsMiscellaneousCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_19c18237-ca74-4e72-8fa0-f0a5264e73e9" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousCurrent_a6ed29ed-8cbd-489a-93e1-f35a88dc03f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_6a31a7ee-a66d-4016-ab9f-9cb092c0b81d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_19c18237-ca74-4e72-8fa0-f0a5264e73e9" xlink:to="loc_us-gaap_IncomeTaxesReceivable_6a31a7ee-a66d-4016-ab9f-9cb092c0b81d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_fe0815a0-b941-42dc-b6bd-6a5dd1fdf9ea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_e1c1ec91-59ec-4b78-b2a8-bbc159159dfb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_fe0815a0-b941-42dc-b6bd-6a5dd1fdf9ea" xlink:to="loc_us-gaap_OtherAssetsCurrent_e1c1ec91-59ec-4b78-b2a8-bbc159159dfb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_cdd949eb-7e18-4947-aaa2-25432712fece" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_fe0815a0-b941-42dc-b6bd-6a5dd1fdf9ea" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_cdd949eb-7e18-4947-aaa2-25432712fece" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_e1be2c8a-c13a-473a-884a-23e5b07279c2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_PrepaidMaintenancePostageAndInsurance_dcf29fd4-1b2a-40a4-baf1-5e5ceaa09f23" xlink:href="fi-20241231.xsd#fi_PrepaidMaintenancePostageAndInsurance"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseCurrent_e1be2c8a-c13a-473a-884a-23e5b07279c2" xlink:to="loc_fi_PrepaidMaintenancePostageAndInsurance_dcf29fd4-1b2a-40a4-baf1-5e5ceaa09f23" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherPrepaidExpenseCurrent_c6be8208-5687-4feb-bb33-49bc07cf5e79" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherPrepaidExpenseCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseCurrent_e1be2c8a-c13a-473a-884a-23e5b07279c2" xlink:to="loc_us-gaap_OtherPrepaidExpenseCurrent_c6be8208-5687-4feb-bb33-49bc07cf5e79" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesPropertyandEquipmentDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#SummaryofSignificantAccountingPoliciesPropertyandEquipmentDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesPropertyandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_03b737f8-06ee-46fc-a638-6071fdc92cdd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_5c1cd75f-5d21-4a85-8786-5a4e4752c65b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_03b737f8-06ee-46fc-a638-6071fdc92cdd" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_5c1cd75f-5d21-4a85-8786-5a4e4752c65b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_fa1456ad-b36d-4489-b661-295944271ca5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_03b737f8-06ee-46fc-a638-6071fdc92cdd" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_fa1456ad-b36d-4489-b661-295944271ca5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesAccountsPayableandOtherCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#SummaryofSignificantAccountingPoliciesAccountsPayableandOtherCurrentLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesAccountsPayableandOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_e427526f-a757-4dd4-8d2e-43abb6822654" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_e427526f-a757-4dd4-8d2e-43abb6822654" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_30aac3d4-95d9-4506-abc5-aa148c103064" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_us-gaap_AccountsPayableCurrent_30aac3d4-95d9-4506-abc5-aa148c103064" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedProfessionalFeesCurrent_c223ac56-06a9-4b0d-8dfd-cfdf24a38596" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedProfessionalFeesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_us-gaap_AccruedProfessionalFeesCurrent_c223ac56-06a9-4b0d-8dfd-cfdf24a38596" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedEmployeeBenefitsCurrent_abc6d72c-69a4-49da-80cc-1cf0448d2d30" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedEmployeeBenefitsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_us-gaap_AccruedEmployeeBenefitsCurrent_abc6d72c-69a4-49da-80cc-1cf0448d2d30" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrent_0e0875b2-d9ca-4eb2-a66c-220234f47bac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestPayableCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_us-gaap_InterestPayableCurrent_0e0875b2-d9ca-4eb2-a66c-220234f47bac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_7e32a76e-d59c-4cf5-8c36-8a9a48f54da8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TaxesPayableCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_us-gaap_TaxesPayableCurrent_7e32a76e-d59c-4cf5-8c36-8a9a48f54da8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_ContractWithCustomerLiabilityCustomerDepositsCurrent_23efafba-faa8-4f1e-ade3-3109a1b63104" xlink:href="fi-20241231.xsd#fi_ContractWithCustomerLiabilityCustomerDepositsCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_fi_ContractWithCustomerLiabilityCustomerDepositsCurrent_23efafba-faa8-4f1e-ade3-3109a1b63104" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_AccruedPaymentNetworkFeesCurrent_4a60bff7-034d-4cc0-b2db-bc4706a3320f" xlink:href="fi-20241231.xsd#fi_AccruedPaymentNetworkFeesCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_fi_AccruedPaymentNetworkFeesCurrent_4a60bff7-034d-4cc0-b2db-bc4706a3320f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_TransferrableFederalTaxCreditPayableCurrent_ee88c05e-df8c-4b54-a481-552a120b150f" xlink:href="fi-20241231.xsd#fi_TransferrableFederalTaxCreditPayableCurrent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_fi_TransferrableFederalTaxCreditPayableCurrent_ee88c05e-df8c-4b54-a481-552a120b150f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MandatorilyRedeemablePreferredStockFairValueDisclosure_505be81e-f481-420c-87bd-4ddc00556491" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MandatorilyRedeemablePreferredStockFairValueDisclosure"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_us-gaap_MandatorilyRedeemablePreferredStockFairValueDisclosure_505be81e-f481-420c-87bd-4ddc00556491" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_39011d11-a6ba-4e4b-bded-7dd7c9624153" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_26000826-3258-43b7-b023-cf740d904957" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_39011d11-a6ba-4e4b-bded-7dd7c9624153" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesInterestExpenseNetDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#SummaryofSignificantAccountingPoliciesInterestExpenseNetDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesInterestExpenseNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_36b31664-70ed-4ee3-b26b-a9e911fbf4f6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_6552509a-da2a-4533-83c4-0a744e5f9e78" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_36b31664-70ed-4ee3-b26b-a9e911fbf4f6" xlink:to="loc_us-gaap_InterestExpenseNonoperating_6552509a-da2a-4533-83c4-0a744e5f9e78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_cf411500-bcd9-4184-9bb5-ac3d3b60fa8d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_36b31664-70ed-4ee3-b26b-a9e911fbf4f6" xlink:to="loc_us-gaap_InvestmentIncomeInterest_cf411500-bcd9-4184-9bb5-ac3d3b60fa8d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesNetIncomePerShareDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#SummaryofSignificantAccountingPoliciesNetIncomePerShareDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/SummaryofSignificantAccountingPoliciesNetIncomePerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_f01b244c-1b8b-419c-8c11-987f325a1e93" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f244be0b-717f-40b8-b8d6-9049037eff06" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_f01b244c-1b8b-419c-8c11-987f325a1e93" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f244be0b-717f-40b8-b8d6-9049037eff06" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_a4079910-baa4-4a93-8ce1-6660acde42ab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_f01b244c-1b8b-419c-8c11-987f325a1e93" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_a4079910-baa4-4a93-8ce1-6660acde42ab" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/AcquisitionsandDispositionsPurchasePriceAllocationDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#AcquisitionsandDispositionsPurchasePriceAllocationDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/AcquisitionsandDispositionsPurchasePriceAllocationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_bda10cde-f436-4d2c-b04c-2e6828e38083" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_c709491e-f758-49a5-96e6-750a60a45383" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_bda10cde-f436-4d2c-b04c-2e6828e38083" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_c709491e-f758-49a5-96e6-750a60a45383" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_12bd3fad-e45a-4268-bbcd-a7f2a0a3298b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_bda10cde-f436-4d2c-b04c-2e6828e38083" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_12bd3fad-e45a-4268-bbcd-a7f2a0a3298b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_840316af-8ed3-49d1-b4a0-a9409a8fbcfb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_bda10cde-f436-4d2c-b04c-2e6828e38083" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_840316af-8ed3-49d1-b4a0-a9409a8fbcfb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_b1d98483-b2d9-4e98-bd6e-e221a852367b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_bda10cde-f436-4d2c-b04c-2e6828e38083" xlink:to="loc_us-gaap_Goodwill_b1d98483-b2d9-4e98-bd6e-e221a852367b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/SettlementAssetsandObligationsDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#SettlementAssetsandObligationsDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/SettlementAssetsandObligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SettlementAssetsCurrent_cd9c525e-5d8d-43b0-86c6-87dff61074fa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SettlementAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_SettlementAssetsCurrentCashAndCashEquivalents_82c3727c-71cb-4af1-a649-0c0d927b0648" xlink:href="fi-20241231.xsd#fi_SettlementAssetsCurrentCashAndCashEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SettlementAssetsCurrent_cd9c525e-5d8d-43b0-86c6-87dff61074fa" xlink:to="loc_fi_SettlementAssetsCurrentCashAndCashEquivalents_82c3727c-71cb-4af1-a649-0c0d927b0648" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_SettlementAssetsCurrentReceivables_7e3862f1-0b16-4d9d-8616-ef93c84fa9a2" xlink:href="fi-20241231.xsd#fi_SettlementAssetsCurrentReceivables"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SettlementAssetsCurrent_cd9c525e-5d8d-43b0-86c6-87dff61074fa" xlink:to="loc_fi_SettlementAssetsCurrentReceivables_7e3862f1-0b16-4d9d-8616-ef93c84fa9a2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/IntangibleAssetsScheduleofIntangibleAssetsbyClassDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#IntangibleAssetsScheduleofIntangibleAssetsbyClassDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/IntangibleAssetsScheduleofIntangibleAssetsbyClassDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_bf959a67-cfd5-400d-a391-def065ffc766" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_ee77b802-090c-4422-88a5-3214f087a3cc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_bf959a67-cfd5-400d-a391-def065ffc766" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_ee77b802-090c-4422-88a5-3214f087a3cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_4332c80e-3219-424b-9814-98c53b7029f6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_bf959a67-cfd5-400d-a391-def065ffc766" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_4332c80e-3219-424b-9814-98c53b7029f6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/IntangibleAssetsScheduleofEstimatedAnnualAmortizationExpenseofIntangibleAssetsDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#IntangibleAssetsScheduleofEstimatedAnnualAmortizationExpenseofIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/IntangibleAssetsScheduleofEstimatedAnnualAmortizationExpenseofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_5a9a108e-0b21-473c-a3d6-962f00c2b817" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_a3d9475d-8a54-4767-9328-6cb246719836" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_5a9a108e-0b21-473c-a3d6-962f00c2b817" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_a3d9475d-8a54-4767-9328-6cb246719836" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_ef34cd6d-c99f-409a-b374-f4410080286c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_5a9a108e-0b21-473c-a3d6-962f00c2b817" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_ef34cd6d-c99f-409a-b374-f4410080286c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_b47f2a51-5fc5-42cb-add1-2fd5b8779908" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_5a9a108e-0b21-473c-a3d6-962f00c2b817" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_b47f2a51-5fc5-42cb-add1-2fd5b8779908" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_240a5702-ddc8-475d-9313-3c676091751b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_5a9a108e-0b21-473c-a3d6-962f00c2b817" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_240a5702-ddc8-475d-9313-3c676091751b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4b2ef9c1-e50e-4776-8073-b3c182bebe06" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_5a9a108e-0b21-473c-a3d6-962f00c2b817" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_4b2ef9c1-e50e-4776-8073-b3c182bebe06" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_0b5f81b0-ec9c-40fc-bc9d-9acbc0aaf164" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_5a9a108e-0b21-473c-a3d6-962f00c2b817" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_0b5f81b0-ec9c-40fc-bc9d-9acbc0aaf164" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/LeasesBalanceSheetClassificationofLeaseAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#LeasesBalanceSheetClassificationofLeaseAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/LeasesBalanceSheetClassificationofLeaseAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_fi_LeaseLiability_eb1d9857-d73b-4f12-863f-bb41e6f6e90b" xlink:href="fi-20241231.xsd#fi_LeaseLiability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_6232ed67-b50c-4216-a6bb-e010a31d399e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_fi_LeaseLiability_eb1d9857-d73b-4f12-863f-bb41e6f6e90b" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_6232ed67-b50c-4216-a6bb-e010a31d399e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_9e85ae5c-5a2f-4311-b2b7-d9c202861a7a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_fi_LeaseLiability_eb1d9857-d73b-4f12-863f-bb41e6f6e90b" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_9e85ae5c-5a2f-4311-b2b7-d9c202861a7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_f8fb3dad-c360-4971-b610-27f34e30d2c8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_fi_LeaseLiability_eb1d9857-d73b-4f12-863f-bb41e6f6e90b" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_f8fb3dad-c360-4971-b610-27f34e30d2c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_c858b128-9b6e-4a9f-8bb5-79ee4c186cf1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_fi_LeaseLiability_eb1d9857-d73b-4f12-863f-bb41e6f6e90b" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_c858b128-9b6e-4a9f-8bb5-79ee4c186cf1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_LeaseRightOfUseAsset_3aaa4f49-d89a-4e3e-9061-30fb2a9dee2e" xlink:href="fi-20241231.xsd#fi_LeaseRightOfUseAsset"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_8b15f7f3-4c42-4653-9558-3531abade65c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_fi_LeaseRightOfUseAsset_3aaa4f49-d89a-4e3e-9061-30fb2a9dee2e" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_8b15f7f3-4c42-4653-9558-3531abade65c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_c883a7ba-5e86-40a2-96e7-2575974be2e2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_fi_LeaseRightOfUseAsset_3aaa4f49-d89a-4e3e-9061-30fb2a9dee2e" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_c883a7ba-5e86-40a2-96e7-2575974be2e2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/LeasesLeaseCostDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#LeasesLeaseCostDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/LeasesLeaseCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_e123dae6-54a2-4f24-919d-e49a2e954166" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_845c3260-0aa7-4891-b9af-97cce69c3a76" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_e123dae6-54a2-4f24-919d-e49a2e954166" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_845c3260-0aa7-4891-b9af-97cce69c3a76" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_635fbada-c5f3-400d-a6d1-821f6de54e97" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_e123dae6-54a2-4f24-919d-e49a2e954166" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_635fbada-c5f3-400d-a6d1-821f6de54e97" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_80e960bc-3742-48fe-82c1-689cb0912273" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_e123dae6-54a2-4f24-919d-e49a2e954166" xlink:to="loc_us-gaap_OperatingLeaseCost_80e960bc-3742-48fe-82c1-689cb0912273" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/LeasesLeaseMaturityDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#LeasesLeaseMaturityDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/LeasesLeaseMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_64ff6ae4-5bd2-49db-a119-f3eb941e8569" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_6d4b9d14-6318-4322-9e01-00cf5d809e63" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_64ff6ae4-5bd2-49db-a119-f3eb941e8569" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_6d4b9d14-6318-4322-9e01-00cf5d809e63" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_cb0ceac6-8240-4f74-a852-aa224919be49" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_64ff6ae4-5bd2-49db-a119-f3eb941e8569" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_cb0ceac6-8240-4f74-a852-aa224919be49" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_a6aa84a4-5d97-4717-abcf-763165532299" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_64ff6ae4-5bd2-49db-a119-f3eb941e8569" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_a6aa84a4-5d97-4717-abcf-763165532299" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_2dbcc9d6-de11-4b84-97d0-f710ff62946c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_64ff6ae4-5bd2-49db-a119-f3eb941e8569" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_2dbcc9d6-de11-4b84-97d0-f710ff62946c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_8239c568-b0e0-43fe-a1c5-12939971e547" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_64ff6ae4-5bd2-49db-a119-f3eb941e8569" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_8239c568-b0e0-43fe-a1c5-12939971e547" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_07c3bec6-553e-4647-8ab5-20bd27c71991" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_64ff6ae4-5bd2-49db-a119-f3eb941e8569" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_07c3bec6-553e-4647-8ab5-20bd27c71991" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_126a03fa-b4e3-4fa8-b13c-2cf90af96535" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_e02f9454-cfd3-487a-92a8-4283b290a7b6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_126a03fa-b4e3-4fa8-b13c-2cf90af96535" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_e02f9454-cfd3-487a-92a8-4283b290a7b6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_52b1d106-d092-4243-9c76-06d05d5f2c18" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_126a03fa-b4e3-4fa8-b13c-2cf90af96535" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_52b1d106-d092-4243-9c76-06d05d5f2c18" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_0539b6fd-3c2d-49a9-9d6e-0157b8fcda5c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_126a03fa-b4e3-4fa8-b13c-2cf90af96535" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_0539b6fd-3c2d-49a9-9d6e-0157b8fcda5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_e7a8277a-846d-419c-a927-1ae8e671b94d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_126a03fa-b4e3-4fa8-b13c-2cf90af96535" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_e7a8277a-846d-419c-a927-1ae8e671b94d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_db5c0eb7-6abd-4251-ad5a-fc365a4cebaf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_126a03fa-b4e3-4fa8-b13c-2cf90af96535" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_db5c0eb7-6abd-4251-ad5a-fc365a4cebaf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_24aa39db-3558-482a-be8b-aa7a66ab9752" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_126a03fa-b4e3-4fa8-b13c-2cf90af96535" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_24aa39db-3558-482a-be8b-aa7a66ab9752" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/LeasesLeaseMaturityDetails_1" xlink:type="simple" xlink:href="fi-20241231.xsd#LeasesLeaseMaturityDetails_1"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/LeasesLeaseMaturityDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_e14ebfc1-45c4-41df-b90b-a9b1e787fe56" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_3333732e-2a17-4a93-9700-370585dd4909" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_e14ebfc1-45c4-41df-b90b-a9b1e787fe56" xlink:to="loc_us-gaap_FinanceLeaseLiability_3333732e-2a17-4a93-9700-370585dd4909" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_09a1b7e2-0e0d-48a3-bd94-4c7d5b5c0a8b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_e14ebfc1-45c4-41df-b90b-a9b1e787fe56" xlink:to="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_09a1b7e2-0e0d-48a3-bd94-4c7d5b5c0a8b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_dfca3590-cb42-4ae6-9834-384bd3092ddd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_bf1083a8-4a74-43b2-93e9-98c925cdf9a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_dfca3590-cb42-4ae6-9834-384bd3092ddd" xlink:to="loc_us-gaap_OperatingLeaseLiability_bf1083a8-4a74-43b2-93e9-98c925cdf9a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_cfe71ea6-e20e-4edd-971b-936d555a00de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_dfca3590-cb42-4ae6-9834-384bd3092ddd" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_cfe71ea6-e20e-4edd-971b-936d555a00de" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/LeasesComponentsofNetInvestmentinSalesTypeLeasesDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#LeasesComponentsofNetInvestmentinSalesTypeLeasesDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/LeasesComponentsofNetInvestmentinSalesTypeLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss_0d027128-088e-41f9-9eaf-b12095832ca7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_4d4e679e-4698-4ba6-b7c7-5c355d9c467e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss_0d027128-088e-41f9-9eaf-b12095832ca7" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_4d4e679e-4698-4ba6-b7c7-5c355d9c467e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_SalesTypeAndDirectFinancingLeasesUnguaranteedResidualAsset_b30dc10e-5489-49aa-8fcf-c0f1e8f712de" xlink:href="fi-20241231.xsd#fi_SalesTypeAndDirectFinancingLeasesUnguaranteedResidualAsset"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss_0d027128-088e-41f9-9eaf-b12095832ca7" xlink:to="loc_fi_SalesTypeAndDirectFinancingLeasesUnguaranteedResidualAsset_b30dc10e-5489-49aa-8fcf-c0f1e8f712de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_SalesTypeAndDirectFinancingLeasesUnearnedInterestIncome_1aa918f2-566f-4801-b899-c12911164369" xlink:href="fi-20241231.xsd#fi_SalesTypeAndDirectFinancingLeasesUnearnedInterestIncome"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss_0d027128-088e-41f9-9eaf-b12095832ca7" xlink:to="loc_fi_SalesTypeAndDirectFinancingLeasesUnearnedInterestIncome_1aa918f2-566f-4801-b899-c12911164369" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/LeasesLessorMaturitiesofFutureMinimumLeasePaymentsDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#LeasesLessorMaturitiesofFutureMinimumLeasePaymentsDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/LeasesLessorMaturitiesofFutureMinimumLeasePaymentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_c2f066d8-81e3-49a2-9244-08f6afc8b1b6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_727519d9-a4b2-4096-9935-98ba640207c2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_c2f066d8-81e3-49a2-9244-08f6afc8b1b6" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_727519d9-a4b2-4096-9935-98ba640207c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_52d28135-d82c-49c1-83e7-5e662ad912d0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_c2f066d8-81e3-49a2-9244-08f6afc8b1b6" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_52d28135-d82c-49c1-83e7-5e662ad912d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_598d5af5-027e-4322-bed9-91d5d4c1b881" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_c2f066d8-81e3-49a2-9244-08f6afc8b1b6" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_598d5af5-027e-4322-bed9-91d5d4c1b881" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_509bce5c-b8c2-48e3-aeb3-365f6984c7d3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_c2f066d8-81e3-49a2-9244-08f6afc8b1b6" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_509bce5c-b8c2-48e3-aeb3-365f6984c7d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears_15d03915-06e4-4916-bdbe-ee438bd80963" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_c2f066d8-81e3-49a2-9244-08f6afc8b1b6" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears_15d03915-06e4-4916-bdbe-ee438bd80963" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter_d33397dd-94d7-4f30-9fc3-a4d1e59fe484" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_c2f066d8-81e3-49a2-9244-08f6afc8b1b6" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter_d33397dd-94d7-4f30-9fc3-a4d1e59fe484" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/DebtScheduleofDebtDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#DebtScheduleofDebtDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/DebtScheduleofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_b7ead0c4-e42e-4d38-add8-210c1d42acb1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_ceed33a8-b9b4-45e1-a2eb-91c2ab58ca51" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_b7ead0c4-e42e-4d38-add8-210c1d42acb1" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_ceed33a8-b9b4-45e1-a2eb-91c2ab58ca51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_89f24634-abf1-4517-adce-2794d56d818b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_b7ead0c4-e42e-4d38-add8-210c1d42acb1" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_89f24634-abf1-4517-adce-2794d56d818b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_FinanceLeaseLiabilityAndOtherNoncurrent_2f0b355c-5e3c-4786-9ec1-a111fd1e0368" xlink:href="fi-20241231.xsd#fi_FinanceLeaseLiabilityAndOtherNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_b7ead0c4-e42e-4d38-add8-210c1d42acb1" xlink:to="loc_fi_FinanceLeaseLiabilityAndOtherNoncurrent_2f0b355c-5e3c-4786-9ec1-a111fd1e0368" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/DebtAnnualMaturitiesofTotalDebtDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#DebtAnnualMaturitiesofTotalDebtDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/DebtAnnualMaturitiesofTotalDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_94a7fd83-3257-47a2-82ad-fc1e8f572364" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtAndCapitalLeaseObligations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_e023cfe7-80df-4e94-b5d5-482377d152f6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtLongtermAndShorttermCombinedAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_94a7fd83-3257-47a2-82ad-fc1e8f572364" xlink:to="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_e023cfe7-80df-4e94-b5d5-482377d152f6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_27450d11-383f-491c-a80c-36ad0dadafb2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_94a7fd83-3257-47a2-82ad-fc1e8f572364" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_27450d11-383f-491c-a80c-36ad0dadafb2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/DebtAnnualMaturitiesofTotalDebtDetails_1" xlink:type="simple" xlink:href="fi-20241231.xsd#DebtAnnualMaturitiesofTotalDebtDetails_1"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/DebtAnnualMaturitiesofTotalDebtDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_5da1bab5-0ce4-46ed-996e-ed7372ea3fea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtAndCapitalLeaseObligations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_5b2dea65-1f7d-49bc-836c-6e50352ca536" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_5da1bab5-0ce4-46ed-996e-ed7372ea3fea" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_5b2dea65-1f7d-49bc-836c-6e50352ca536" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_223f00a6-51d1-4300-a637-88e1d77855cf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_5da1bab5-0ce4-46ed-996e-ed7372ea3fea" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_223f00a6-51d1-4300-a637-88e1d77855cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_0d80f241-7a7e-455a-b3ff-9e1a708d1fef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_5da1bab5-0ce4-46ed-996e-ed7372ea3fea" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_0d80f241-7a7e-455a-b3ff-9e1a708d1fef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_fe695ad8-955d-40c2-9299-151350393653" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_5da1bab5-0ce4-46ed-996e-ed7372ea3fea" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_fe695ad8-955d-40c2-9299-151350393653" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_ce5a0eed-e4e5-4bca-bc93-eeca0b44948d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_5da1bab5-0ce4-46ed-996e-ed7372ea3fea" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_ce5a0eed-e4e5-4bca-bc93-eeca0b44948d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_1fda7395-e604-4844-966a-4af1ab4b063b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_5da1bab5-0ce4-46ed-996e-ed7372ea3fea" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_1fda7395-e604-4844-966a-4af1ab4b063b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/AccumulatedOtherComprehensiveLossScheduleofAccumulatedOtherComprehensiveLossDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#AccumulatedOtherComprehensiveLossScheduleofAccumulatedOtherComprehensiveLossDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/AccumulatedOtherComprehensiveLossScheduleofAccumulatedOtherComprehensiveLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_754f288b-1b3a-448d-809b-dda041762fc9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_476a29e2-adb3-4e6a-99e7-b1c82fd4e83f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_754f288b-1b3a-448d-809b-dda041762fc9" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_476a29e2-adb3-4e6a-99e7-b1c82fd4e83f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_42191b44-34b9-48fc-8894-ecd95b77f874" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_754f288b-1b3a-448d-809b-dda041762fc9" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_42191b44-34b9-48fc-8894-ecd95b77f874" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/EmployeeBenefitPlansFundedStatusofDefinedBenefitPensionPlansDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#EmployeeBenefitPlansFundedStatusofDefinedBenefitPensionPlansDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/EmployeeBenefitPlansFundedStatusofDefinedBenefitPensionPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_e5a6670e-5d66-4d75-afc1-d57013ed8e5e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DefinedBenefitPlanFundedStatusOfPlan"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitObligation_d17dc9a7-d5d2-4e8c-8d8e-4008bb683b7b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DefinedBenefitPlanBenefitObligation"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_e5a6670e-5d66-4d75-afc1-d57013ed8e5e" xlink:to="loc_us-gaap_DefinedBenefitPlanBenefitObligation_d17dc9a7-d5d2-4e8c-8d8e-4008bb683b7b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_63603d65-e2d9-499d-80d9-cb4c5245375a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_e5a6670e-5d66-4d75-afc1-d57013ed8e5e" xlink:to="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_63603d65-e2d9-499d-80d9-cb4c5245375a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitExpenseDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#EmployeeBenefitPlansComponentsofNetPeriodicBenefitExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_b15d7978-a170-4854-9074-71964399f677" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_84aa8567-3118-476f-bf0d-489be04935d4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_b15d7978-a170-4854-9074-71964399f677" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_84aa8567-3118-476f-bf0d-489be04935d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_729c623d-166d-437f-ab26-1c9baf598e69" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_b15d7978-a170-4854-9074-71964399f677" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_729c623d-166d-437f-ab26-1c9baf598e69" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/IncomeTaxesScheduleofIncomeBeforeTaxesDomesticandForeignDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#IncomeTaxesScheduleofIncomeBeforeTaxesDomesticandForeignDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/IncomeTaxesScheduleofIncomeBeforeTaxesDomesticandForeignDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_46a9bee4-95c1-480c-90ad-b0589e4dc572" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_4dd20db2-a3f0-45d5-8725-7aeecb206517" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_46a9bee4-95c1-480c-90ad-b0589e4dc572" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_4dd20db2-a3f0-45d5-8725-7aeecb206517" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_b0429531-2e04-45a6-9974-e2c25b68a1ad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_46a9bee4-95c1-480c-90ad-b0589e4dc572" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_b0429531-2e04-45a6-9974-e2c25b68a1ad" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/IncomeTaxesPretaxIncomeandIncomeTaxProvisionDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#IncomeTaxesPretaxIncomeandIncomeTaxProvisionDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/IncomeTaxesPretaxIncomeandIncomeTaxProvisionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_a87bbeaa-5727-48d0-b4f2-c1ec64df856e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_8babeee5-bd8f-415f-bc27-8f4fcd62b603" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CurrentFederalTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_a87bbeaa-5727-48d0-b4f2-c1ec64df856e" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_8babeee5-bd8f-415f-bc27-8f4fcd62b603" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_95694aa8-041c-4b7f-a507-ed51b267ade8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_a87bbeaa-5727-48d0-b4f2-c1ec64df856e" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_95694aa8-041c-4b7f-a507-ed51b267ade8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_f71118ca-3bc2-47a7-9d9d-0757d10e6359" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CurrentForeignTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_a87bbeaa-5727-48d0-b4f2-c1ec64df856e" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_f71118ca-3bc2-47a7-9d9d-0757d10e6359" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_9bda7727-e21d-4911-8b7d-3f0a5daed1db" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_93a14ecd-9fd0-4a16-b043-54aaaae61291" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_9bda7727-e21d-4911-8b7d-3f0a5daed1db" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_93a14ecd-9fd0-4a16-b043-54aaaae61291" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_10dda77a-8614-4f81-b178-427870ecc2b0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_9bda7727-e21d-4911-8b7d-3f0a5daed1db" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_10dda77a-8614-4f81-b178-427870ecc2b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_c71b8de6-5c81-4d9f-b4b0-2a38829f109e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_3aeb7d0b-0f2f-4ffc-9ca7-aa4d47f653ca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_c71b8de6-5c81-4d9f-b4b0-2a38829f109e" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_3aeb7d0b-0f2f-4ffc-9ca7-aa4d47f653ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_699d592d-42d2-433b-bba5-5fa2f8c4d216" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_c71b8de6-5c81-4d9f-b4b0-2a38829f109e" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_699d592d-42d2-433b-bba5-5fa2f8c4d216" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_be72aaa6-18f9-4dbc-a5f2-d3a956cd266e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_c71b8de6-5c81-4d9f-b4b0-2a38829f109e" xlink:to="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_be72aaa6-18f9-4dbc-a5f2-d3a956cd266e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/IncomeTaxesReconciliationofStatutoryFederalIncomeTaxRateDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#IncomeTaxesReconciliationofStatutoryFederalIncomeTaxRateDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/IncomeTaxesReconciliationofStatutoryFederalIncomeTaxRateDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_d5ea5bbe-4101-4d8a-9158-e90815fd96c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_d5ea5bbe-4101-4d8a-9158-e90815fd96c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationFdiiPercent_72aa0e78-3ff7-4e72-9984-6b505e0077bd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationFdiiPercent"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationFdiiPercent_72aa0e78-3ff7-4e72-9984-6b505e0077bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent_c8cc5239-a608-4312-a0c8-c9a88dab0de0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent_c8cc5239-a608-4312-a0c8-c9a88dab0de0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary_4dc23104-7592-4405-bb10-5d98ea594723" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary_4dc23104-7592-4405-bb10-5d98ea594723" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_adcf5f42-7d49-4ee6-b221-6f4111c1ec32" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_adcf5f42-7d49-4ee6-b221-6f4111c1ec32" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_d2a56638-a610-4aed-813b-fb2e0e0f114d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_d2a56638-a610-4aed-813b-fb2e0e0f114d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_98b432ee-9071-4d40-9996-8ca243eac808" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_98b432ee-9071-4d40-9996-8ca243eac808" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationDispositionOfBusiness_197fff31-2a40-492b-8851-9519935cd3f5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationDispositionOfBusiness"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationDispositionOfBusiness_197fff31-2a40-492b-8851-9519935cd3f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_13b24eac-55bd-4ad1-83fe-3886c0564899" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_13b24eac-55bd-4ad1-83fe-3886c0564899" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent_7da5f165-90c8-407f-bee1-c899ac2de853" xlink:href="fi-20241231.xsd#fi_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_fi_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent_7da5f165-90c8-407f-bee1-c899ac2de853" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies_27c8d7f5-2f42-47d3-ae85-eb81a8bf50a5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6e41fbb2-4d0c-4314-8f0b-e912cee40b6a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies_27c8d7f5-2f42-47d3-ae85-eb81a8bf50a5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/IncomeTaxesSignificantComponentsofDeferredTaxAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#IncomeTaxesSignificantComponentsofDeferredTaxAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/IncomeTaxesSignificantComponentsofDeferredTaxAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_ec66b9ca-c80e-4979-9200-028af7d37969" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_aafe03bd-d88d-45e7-acf4-bd3f430cdfa0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_ec66b9ca-c80e-4979-9200-028af7d37969" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_aafe03bd-d88d-45e7-acf4-bd3f430cdfa0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_19f9e3cf-bd1f-43d9-9957-e3d0e64c4c68" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_ec66b9ca-c80e-4979-9200-028af7d37969" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_19f9e3cf-bd1f-43d9-9957-e3d0e64c4c68" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_fdc2c6db-5057-446e-a930-cf79c508ed4c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals_1e10c4aa-da45-4d74-b0a8-6fc4237aeaa1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_fdc2c6db-5057-446e-a930-cf79c508ed4c" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals_1e10c4aa-da45-4d74-b0a8-6fc4237aeaa1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_1442c6f3-c678-49a2-954d-7c54ab4abf5e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_fdc2c6db-5057-446e-a930-cf79c508ed4c" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_1442c6f3-c678-49a2-954d-7c54ab4abf5e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_DeferredTaxAssetsTaxCreditAndOperatingLossCarryforwards_bcc14201-7058-441d-aa9d-650e9a058664" xlink:href="fi-20241231.xsd#fi_DeferredTaxAssetsTaxCreditAndOperatingLossCarryforwards"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_fdc2c6db-5057-446e-a930-cf79c508ed4c" xlink:to="loc_fi_DeferredTaxAssetsTaxCreditAndOperatingLossCarryforwards_bcc14201-7058-441d-aa9d-650e9a058664" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_f69a94df-b86c-409f-b765-cb79a67909cf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxAssetsOther"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_fdc2c6db-5057-446e-a930-cf79c508ed4c" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_f69a94df-b86c-409f-b765-cb79a67909cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_DeferredTaxAssetsLeasingLiabilities_baa317df-8b70-4d32-9844-db6199040416" xlink:href="fi-20241231.xsd#fi_DeferredTaxAssetsLeasingLiabilities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_fdc2c6db-5057-446e-a930-cf79c508ed4c" xlink:to="loc_fi_DeferredTaxAssetsLeasingLiabilities_baa317df-8b70-4d32-9844-db6199040416" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_5f10b9f0-ad5d-40e8-9f2e-3a6554a1dc76" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_335a9cb2-8d57-4aa2-b944-74b44c51779d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxLiabilitiesLeasingArrangements"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5f10b9f0-ad5d-40e8-9f2e-3a6554a1dc76" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_335a9cb2-8d57-4aa2-b944-74b44c51779d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesInvestments_493e1924-3073-4a1c-ae7a-bc3b6a49f2a5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxLiabilitiesInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5f10b9f0-ad5d-40e8-9f2e-3a6554a1dc76" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesInvestments_493e1924-3073-4a1c-ae7a-bc3b6a49f2a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_6afdfa35-4be5-4436-98b0-d09a7dd2c3d3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5f10b9f0-ad5d-40e8-9f2e-3a6554a1dc76" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_6afdfa35-4be5-4436-98b0-d09a7dd2c3d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_fi_DeferredTaxLiabilitiesDeferredExpenseCapitalizedCommissions_dd712ea4-6cc4-4257-8046-d16c0eed4252" xlink:href="fi-20241231.xsd#fi_DeferredTaxLiabilitiesDeferredExpenseCapitalizedCommissions"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5f10b9f0-ad5d-40e8-9f2e-3a6554a1dc76" xlink:to="loc_fi_DeferredTaxLiabilitiesDeferredExpenseCapitalizedCommissions_dd712ea4-6cc4-4257-8046-d16c0eed4252" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_4348075e-4e33-4475-a75c-79ccec64e14b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5f10b9f0-ad5d-40e8-9f2e-3a6554a1dc76" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_4348075e-4e33-4475-a75c-79ccec64e14b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware_11327140-3a9b-4330-a784-f98297537d1a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5f10b9f0-ad5d-40e8-9f2e-3a6554a1dc76" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware_11327140-3a9b-4330-a784-f98297537d1a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_286812d7-efd8-41c4-a890-925bd7b12c31" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxLiabilitiesOther"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5f10b9f0-ad5d-40e8-9f2e-3a6554a1dc76" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_286812d7-efd8-41c4-a890-925bd7b12c31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilities_8758e45f-e0bc-4c4f-b25b-b7d3f30b0f88" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_9f132d38-c1c5-4fe1-8b09-b1364f5adcb9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxLiabilities_8758e45f-e0bc-4c4f-b25b-b7d3f30b0f88" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_9f132d38-c1c5-4fe1-8b09-b1364f5adcb9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_6df6848e-e67d-4bac-8f01-5df95baa4809" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxLiabilities_8758e45f-e0bc-4c4f-b25b-b7d3f30b0f88" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_6df6848e-e67d-4bac-8f01-5df95baa4809" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.fiserv.com/role/IncomeTaxesDeferredTaxAssetsandLiabilitiesonBalanceSheetsDetails" xlink:type="simple" xlink:href="fi-20241231.xsd#IncomeTaxesDeferredTaxAssetsandLiabilitiesonBalanceSheetsDetails"/>
  <link:calculationLink xlink:role="http://www.fiserv.com/role/IncomeTaxesDeferredTaxAssetsandLiabilitiesonBalanceSheetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilities_05caa760-a535-4266-b6f7-5fe8b384edeb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredTaxLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_efce10df-4462-4a26-89fa-a6e9f5ed4a67" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxLiabilities_05caa760-a535-4266-b6f7-5fe8b384edeb" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_efce10df-4462-4a26-89fa-a6e9f5ed4a67" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_3317ccba-e292-46ac-87d0-02b4394b9cdd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxLiabilities_05caa760-a535-4266-b6f7-5fe8b384edeb" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_3317ccba-e292-46ac-87d0-02b4394b9cdd" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
