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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c7242-2444-7704-a225-1fad3603f717,g:83e588df-155c-4689-9cfe-a5b3bb1a323e-->
<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:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="pbi-20260331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-75ad-97ab-3454f07626e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019c7242-277b-79f0-b5dd-bec1d787ac03" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-75ad-97ab-3454f07626e8" xlink:to="loc_us-gaap_CostsAndExpenses_019c7242-277b-79f0-b5dd-bec1d787ac03" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019c7242-277b-768e-94fc-e02d56b38fcd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-75ad-97ab-3454f07626e8" xlink:to="loc_us-gaap_Revenues_019c7242-277b-768e-94fc-e02d56b38fcd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019c7242-277b-7aa6-afe1-99c78a803494" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019c7242-277b-76bd-a2dc-72f9eb45eb6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c7242-277b-7aa6-afe1-99c78a803494" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019c7242-277b-76bd-a2dc-72f9eb45eb6c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingInterestExpense_019c7242-277b-73a7-9000-e85a1d5edf86" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingInterestExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c7242-277b-7aa6-afe1-99c78a803494" xlink:to="loc_us-gaap_FinancingInterestExpense_019c7242-277b-73a7-9000-e85a1d5edf86" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019c7242-277b-79a2-8d93-ab4be3215a28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c7242-277b-7aa6-afe1-99c78a803494" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019c7242-277b-79a2-8d93-ab4be3215a28" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_019c7242-277b-7e54-9803-d199d8980b2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c7242-277b-7aa6-afe1-99c78a803494" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_019c7242-277b-7e54-9803-d199d8980b2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019c7242-277b-710a-b983-32852e9c8db9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostsAndAssetImpairmentCharges"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c7242-277b-7aa6-afe1-99c78a803494" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019c7242-277b-710a-b983-32852e9c8db9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_019c7242-277b-7ad0-837f-ec4800ecf8ed" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c7242-277b-7aa6-afe1-99c78a803494" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_019c7242-277b-7ad0-837f-ec4800ecf8ed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_019c7242-277b-74b8-815d-c0e28b0adf04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c7242-277b-7aa6-afe1-99c78a803494" xlink:to="loc_us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_019c7242-277b-74b8-815d-c0e28b0adf04" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonrecurringIncomeExpense_019c7242-277b-7cce-bca9-1d191a4881b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonrecurringIncomeExpense"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019c7242-277b-7aa6-afe1-99c78a803494" xlink:to="loc_us-gaap_OtherNonrecurringIncomeExpense_019c7242-277b-7cce-bca9-1d191a4881b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019c7242-277b-7c0f-94e8-0dc96267d013" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7f29-90a4-bbdb3b9d449d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019c7242-277b-7c0f-94e8-0dc96267d013" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7f29-90a4-bbdb3b9d449d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019c7242-277b-7478-bf49-9644a37e30ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019c7242-277b-7c0f-94e8-0dc96267d013" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019c7242-277b-7478-bf49-9644a37e30ce" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="simple" xlink:href="pbi-20260331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019c7242-277b-7097-bf0d-3577ca6aa1a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019c7242-277b-7859-80af-2b91304d358c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019c7242-277b-7097-bf0d-3577ca6aa1a9" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019c7242-277b-7859-80af-2b91304d358c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent_019c7242-277b-7fc0-a95f-5a0a35c8322d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019c7242-277b-7097-bf0d-3577ca6aa1a9" xlink:to="loc_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent_019c7242-277b-7fc0-a95f-5a0a35c8322d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_019c7242-277b-752e-8660-4a74f7aa8644" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019c7242-277b-7097-bf0d-3577ca6aa1a9" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_019c7242-277b-752e-8660-4a74f7aa8644" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019c7242-277b-7d04-8fbe-5426311b218e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019c7242-277b-7c25-8b7a-094d4b925d0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019c7242-277b-7d04-8fbe-5426311b218e" xlink:to="loc_us-gaap_NetIncomeLoss_019c7242-277b-7c25-8b7a-094d4b925d0d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019c7242-277b-711e-a932-64302d07770e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019c7242-277b-7d04-8fbe-5426311b218e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019c7242-277b-711e-a932-64302d07770e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="pbi-20260331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c7242-277b-74ed-9f4e-1cbfb08a11be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019c7242-277b-7c18-b059-b56f12248312" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c7242-277b-74ed-9f4e-1cbfb08a11be" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019c7242-277b-7c18-b059-b56f12248312" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c7242-277b-7f49-8e9a-94fcfef65b24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c7242-277b-74ed-9f4e-1cbfb08a11be" xlink:to="loc_us-gaap_StockholdersEquity_019c7242-277b-7f49-8e9a-94fcfef65b24" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019c7242-277b-72f7-8763-54cea9309354" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019c7242-277b-74ed-9f4e-1cbfb08a11be" xlink:to="loc_us-gaap_Liabilities_019c7242-277b-72f7-8763-54cea9309354" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c7242-277b-77f3-adc3-64572267059e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019c7242-277b-7883-9f7e-82e911dba2a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c7242-277b-77f3-adc3-64572267059e" xlink:to="loc_us-gaap_CommonStockValue_019c7242-277b-7883-9f7e-82e911dba2a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019c7242-277b-7deb-a7ac-f0e7b13b5da9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c7242-277b-77f3-adc3-64572267059e" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019c7242-277b-7deb-a7ac-f0e7b13b5da9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019c7242-277b-71c3-a25e-96203a469c42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c7242-277b-77f3-adc3-64572267059e" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019c7242-277b-71c3-a25e-96203a469c42" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_019c7242-277b-7ae6-86e9-48a11d93fedd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019c7242-277b-77f3-adc3-64572267059e" xlink:to="loc_us-gaap_TreasuryStockCommonValue_019c7242-277b-7ae6-86e9-48a11d93fedd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019c7242-277b-7009-be2a-795a5e9094cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_019c7242-277b-742c-b525-090fe5a5b2e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c7242-277b-7009-be2a-795a5e9094cb" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_019c7242-277b-742c-b525-090fe5a5b2e5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019c7242-277b-7b69-938e-8985cf1cb256" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c7242-277b-7009-be2a-795a5e9094cb" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019c7242-277b-7b69-938e-8985cf1cb256" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_ReserveAccountDepositsCurrent_019c7242-277b-78d0-9864-06c8293d6a28" xlink:href="pbi-20260331.xsd#pbi_ReserveAccountDepositsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c7242-277b-7009-be2a-795a5e9094cb" xlink:to="loc_pbi_ReserveAccountDepositsCurrent_019c7242-277b-78d0-9864-06c8293d6a28" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019c7242-277b-75df-826f-b667434325ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c7242-277b-7009-be2a-795a5e9094cb" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019c7242-277b-75df-826f-b667434325ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019c7242-277b-750f-8cfa-362afe638def" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c7242-277b-7009-be2a-795a5e9094cb" xlink:to="loc_us-gaap_LongTermDebtCurrent_019c7242-277b-750f-8cfa-362afe638def" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019c7242-277b-7030-b1ca-9de75a07fecf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019c7242-277b-7009-be2a-795a5e9094cb" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019c7242-277b-7030-b1ca-9de75a07fecf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019c7242-277b-7d16-8bf1-0f204356e77a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019c7242-277b-754c-87d1-c9a0dbd8d5ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c7242-277b-7d16-8bf1-0f204356e77a" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019c7242-277b-754c-87d1-c9a0dbd8d5ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019c7242-277b-7dfc-8590-38ac927bfca3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c7242-277b-7d16-8bf1-0f204356e77a" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019c7242-277b-7dfc-8590-38ac927bfca3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_ReserveAccountDepositsNoncurrent_019c7242-277b-7be7-b9c3-0661e9bb7d9b" xlink:href="pbi-20260331.xsd#pbi_ReserveAccountDepositsNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c7242-277b-7d16-8bf1-0f204356e77a" xlink:to="loc_pbi_ReserveAccountDepositsNoncurrent_019c7242-277b-7be7-b9c3-0661e9bb7d9b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019c7242-277b-7e30-bacf-f7090fe17834" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c7242-277b-7d16-8bf1-0f204356e77a" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019c7242-277b-7e30-bacf-f7090fe17834" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_019c7242-277b-7383-aeb8-9b72df594c92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilityForUncertainTaxPositionsNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c7242-277b-7d16-8bf1-0f204356e77a" xlink:to="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_019c7242-277b-7383-aeb8-9b72df594c92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019c7242-277b-7e13-9553-2ea36c783bf6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c7242-277b-7d16-8bf1-0f204356e77a" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019c7242-277b-7e13-9553-2ea36c783bf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019c7242-277b-7d7b-b8b2-c47db07af430" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019c7242-277b-7d16-8bf1-0f204356e77a" xlink:to="loc_us-gaap_LiabilitiesCurrent_019c7242-277b-7d7b-b8b2-c47db07af430" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019c7242-277b-78d3-8d5b-fc3d23e36ed0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:to="loc_us-gaap_AssetsCurrent_019c7242-277b-78d3-8d5b-fc3d23e36ed0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019c7242-277b-7db2-9d13-b8c1fa44c44f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019c7242-277b-7db2-9d13-b8c1fa44c44f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_RentalPropertyAndEquipmentNet_019c7242-277b-7cf9-9eeb-e574d78ffa13" xlink:href="pbi-20260331.xsd#pbi_RentalPropertyAndEquipmentNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:to="loc_pbi_RentalPropertyAndEquipmentNet_019c7242-277b-7cf9-9eeb-e574d78ffa13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent_019c7242-277b-7327-9a29-956e5f5638df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesAndLoansReceivableNetNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent_019c7242-277b-7327-9a29-956e5f5638df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019c7242-277b-74c7-ad40-85e07fa4d809" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:to="loc_us-gaap_Goodwill_019c7242-277b-74c7-ad40-85e07fa4d809" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019c7242-277b-75eb-be2c-7a39e25c9df2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019c7242-277b-75eb-be2c-7a39e25c9df2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_019c7242-277b-7fed-b6df-b5417de26daf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_019c7242-277b-7fed-b6df-b5417de26daf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019c7242-277b-7bc3-90b2-3ba8b8e9a322" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019c7242-277b-7bc3-90b2-3ba8b8e9a322" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019c7242-277b-765b-a62b-05387475f354" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019c7242-277b-71cd-be67-d472366d6660" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019c7242-277b-765b-a62b-05387475f354" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019c7242-277b-726e-ade7-5810e62b2973" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_019c7242-277b-7872-a05e-0eba3be0a9de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c7242-277b-726e-ade7-5810e62b2973" xlink:to="loc_us-gaap_IncomeTaxesReceivable_019c7242-277b-7872-a05e-0eba3be0a9de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019c7242-277b-764b-853d-2ac79e85f587" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c7242-277b-726e-ade7-5810e62b2973" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019c7242-277b-764b-853d-2ac79e85f587" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019c7242-277b-7232-865f-4d5a5cb67fd3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c7242-277b-726e-ade7-5810e62b2973" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019c7242-277b-7232-865f-4d5a5cb67fd3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_019c7242-277b-7d17-9aa9-293554563114" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c7242-277b-726e-ade7-5810e62b2973" xlink:to="loc_us-gaap_ShortTermInvestments_019c7242-277b-7d17-9aa9-293554563114" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019c7242-277b-7a9e-8ec1-f5b89cec9e21" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c7242-277b-726e-ade7-5810e62b2973" xlink:to="loc_us-gaap_InventoryNet_019c7242-277b-7a9e-8ec1-f5b89cec9e21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetCurrent_019c7242-277b-776e-8f28-ea636d9d3a75" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesAndLoansReceivableNetCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c7242-277b-726e-ade7-5810e62b2973" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetCurrent_019c7242-277b-776e-8f28-ea636d9d3a75" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019c7242-277b-7c28-8d39-e13435c8a312" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019c7242-277b-726e-ade7-5810e62b2973" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019c7242-277b-7c28-8d39-e13435c8a312" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="pbi-20260331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-7c5b-aec7-a5c2302a21f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019c7242-277b-7399-9a4d-5fe211240241" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-7c5b-aec7-a5c2302a21f0" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019c7242-277b-7399-9a4d-5fe211240241" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfOtherLongTermDebt_019c7242-277b-78fd-ac11-495fd6c85087" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfOtherLongTermDebt"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-7c5b-aec7-a5c2302a21f0" xlink:to="loc_us-gaap_RepaymentsOfOtherLongTermDebt_019c7242-277b-78fd-ac11-495fd6c85087" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarlyRepaymentOfSeniorDebt_019d44b8-709c-7248-8aa1-f449371f5059" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarlyRepaymentOfSeniorDebt"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-7c5b-aec7-a5c2302a21f0" xlink:to="loc_us-gaap_EarlyRepaymentOfSeniorDebt_019d44b8-709c-7248-8aa1-f449371f5059" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_019d44b8-709c-728b-96c4-25bdf50becfa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-7c5b-aec7-a5c2302a21f0" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_019d44b8-709c-728b-96c4-25bdf50becfa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_ProceedsFromCustomerDeposits_019d44b8-709c-729d-afcf-5659558b1ab9" xlink:href="pbi-20260331.xsd#pbi_ProceedsFromCustomerDeposits"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-7c5b-aec7-a5c2302a21f0" xlink:to="loc_pbi_ProceedsFromCustomerDeposits_019d44b8-709c-729d-afcf-5659558b1ab9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfEquity_019d44b8-709c-7348-96f1-9af116247bb3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfEquity"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-7c5b-aec7-a5c2302a21f0" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfEquity_019d44b8-709c-7348-96f1-9af116247bb3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019d44b8-709c-763d-9819-a777b4a1fa17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-7c5b-aec7-a5c2302a21f0" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019d44b8-709c-763d-9819-a777b4a1fa17" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-72f5-bc18-947160dd8e0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019c7242-277b-7529-b36a-d66dcb9aa7ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-72f5-bc18-947160dd8e0d" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019c7242-277b-7529-b36a-d66dcb9aa7ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities_019c7242-277b-748f-a3f1-aab252a2a2e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-72f5-bc18-947160dd8e0d" xlink:to="loc_us-gaap_PaymentsToAcquireMarketableSecurities_019c7242-277b-748f-a3f1-aab252a2a2e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_019d44b8-565b-73af-bee3-6845572d3fa5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-72f5-bc18-947160dd8e0d" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_019d44b8-565b-73af-bee3-6845572d3fa5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromShortTermInvestments_019d44b8-565b-76fb-91ab-fc9f3652165b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromShortTermInvestments"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-72f5-bc18-947160dd8e0d" xlink:to="loc_us-gaap_PaymentsForProceedsFromShortTermInvestments_019d44b8-565b-76fb-91ab-fc9f3652165b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_PaymentsForDebtorInPossessionFinancing_019d44b8-565b-78d3-a692-d87a5d6c9bd7" xlink:href="pbi-20260331.xsd#pbi_PaymentsForDebtorInPossessionFinancing"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-72f5-bc18-947160dd8e0d" xlink:to="loc_pbi_PaymentsForDebtorInPossessionFinancing_019d44b8-565b-78d3-a692-d87a5d6c9bd7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019d44b8-565b-7eb1-988b-6a7ac17f8ad4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-72f5-bc18-947160dd8e0d" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019d44b8-565b-7eb1-988b-6a7ac17f8ad4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019d44b8-565b-7526-a0ab-3167f9778b39" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-72f5-bc18-947160dd8e0d" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019d44b8-565b-7526-a0ab-3167f9778b39" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c7242-277b-7fa0-a320-14dd6491958d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-72b8-852d-baec6284cbf3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c7242-277b-7fa0-a320-14dd6491958d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-72b8-852d-baec6284cbf3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-741c-ace6-d7c9e8a27c48" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c7242-277b-7fa0-a320-14dd6491958d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019c7242-277b-741c-ace6-d7c9e8a27c48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-749b-91bf-4964eeab1ba2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c7242-277b-7fa0-a320-14dd6491958d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019c7242-277b-749b-91bf-4964eeab1ba2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_019c7242-277b-71fe-8e78-d57c51969f5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019c7242-277b-7fa0-a320-14dd6491958d" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_019c7242-277b-71fe-8e78-d57c51969f5a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019c7242-277b-7699-9cac-aad77322ef37" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_NetIncomeLoss_019c7242-277b-7699-9cac-aad77322ef37" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_019c7242-277b-7bc4-b10a-55e3dd8483d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_DepreciationAndAmortization_019c7242-277b-7bc4-b10a-55e3dd8483d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivableAndAccountsReceivableCreditLossExpenseReversal_019d44b5-a3a4-7bb4-a10f-846b53a8c3a1" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivableAndAccountsReceivableCreditLossExpenseReversal"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_pbi_FinancingReceivableAndAccountsReceivableCreditLossExpenseReversal_019d44b5-a3a4-7bb4-a10f-846b53a8c3a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_DebtorInPossessionFinancingCreditLossExpenseReversal_019d44b5-a3a4-7498-997f-0d91922a1d19" xlink:href="pbi-20260331.xsd#pbi_DebtorInPossessionFinancingCreditLossExpenseReversal"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_pbi_DebtorInPossessionFinancingCreditLossExpenseReversal_019d44b5-a3a4-7498-997f-0d91922a1d19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019d44b5-a3a4-7557-99ff-c06793983527" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_ShareBasedCompensation_019d44b5-a3a4-7557-99ff-c06793983527" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDeferredLoanOriginationFeesNet_019d44b5-a3a4-73e8-86d2-a4cca6aefddf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfDeferredLoanOriginationFeesNet"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_AmortizationOfDeferredLoanOriginationFeesNet_019d44b5-a3a4-73e8-86d2-a4cca6aefddf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019d44b5-a3a4-7fe9-a3b6-ae138f6e8e2d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019d44b5-a3a4-7fe9-a3b6-ae138f6e8e2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019d44b5-a3a4-78da-a5f0-cb8fd2076009" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_RestructuringCharges_019d44b5-a3a4-78da-a5f0-cb8fd2076009" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRestructuring_019d44b5-a3a4-7667-9b21-b65d6d05b6fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRestructuring"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_PaymentsForRestructuring_019d44b5-a3a4-7667-9b21-b65d6d05b6fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_PaymentsForPensionContributionsAndRetireeMedicalPayments_019d44b5-a3a4-7e39-ae7c-79067008fc35" xlink:href="pbi-20260331.xsd#pbi_PaymentsForPensionContributionsAndRetireeMedicalPayments"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_pbi_PaymentsForPensionContributionsAndRetireeMedicalPayments_019d44b5-a3a4-7e39-ae7c-79067008fc35" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfOtherAssets_019d44b5-a3a4-705b-9611-5f41a57864ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfOtherAssets"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_GainLossOnSaleOfOtherAssets_019d44b5-a3a4-705b-9611-5f41a57864ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_GainLossOnRevaluationOfIntercompanyLoans_019d44b5-a3a4-7844-9803-25ac2d5a651d" xlink:href="pbi-20260331.xsd#pbi_GainLossOnRevaluationOfIntercompanyLoans"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_pbi_GainLossOnRevaluationOfIntercompanyLoans_019d44b5-a3a4-7844-9803-25ac2d5a651d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_PaymentsForProceedsFromOtherOperatingActivities_019d44b5-a3a4-7e9f-a197-ce8682e8a97f" xlink:href="pbi-20260331.xsd#pbi_PaymentsForProceedsFromOtherOperatingActivities"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_pbi_PaymentsForProceedsFromOtherOperatingActivities_019d44b5-a3a4-7e9f-a197-ce8682e8a97f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019d44b5-a3a4-7229-90d9-dee9c2890417" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019d44b5-a3a4-7229-90d9-dee9c2890417" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInFinanceReceivables_019d44b5-a3a4-74aa-933e-455dac40a679" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInFinanceReceivables"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_IncreaseDecreaseInFinanceReceivables_019d44b5-a3a4-74aa-933e-455dac40a679" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019d44b5-a3a4-7287-962d-428b1a11f889" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019d44b5-a3a4-7287-962d-428b1a11f889" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019d44b5-a3a4-7d37-bab9-807fa73382ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="17" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019d44b5-a3a4-7d37-bab9-807fa73382ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019d44b5-a3a4-76c7-b606-69d18d393a49" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019d44b5-a3a4-76c7-b606-69d18d393a49" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019d44b5-a3a4-7d73-a090-9dcaa072d56c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019d44b5-a3a4-7d73-a090-9dcaa072d56c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019d44b5-a3a4-7cf6-acbc-c898e37e5032" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="20" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019c7242-277b-7d68-876d-4eb7742eb1ea" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019d44b5-a3a4-7cf6-acbc-c898e37e5032" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/RevenueDisaggregatesofRevenueDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#RevenueDisaggregatesofRevenueDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/RevenueDisaggregatesofRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019c7242-277b-7c66-9674-484f00476879" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c7242-277b-7046-b417-cb3bb70cc9e2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019c7242-277b-7c66-9674-484f00476879" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c7242-277b-7046-b417-cb3bb70cc9e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseIncome_019c7242-277b-7678-bca1-bc849352f2ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseIncome"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019c7242-277b-7c66-9674-484f00476879" xlink:to="loc_us-gaap_LeaseIncome_019c7242-277b-7678-bca1-bc849352f2ea" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/SegmentInformationReportableSegmentsandReconciliationofAdjustedSegmentEBITDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#SegmentInformationReportableSegmentsandReconciliationofAdjustedSegmentEBITDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/SegmentInformationReportableSegmentsandReconciliationofAdjustedSegmentEBITDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019c7242-277b-73ec-ac80-6b99afb376a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019c7242-277b-7c5c-934c-55456a882ec4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019c7242-277b-73ec-ac80-6b99afb376a7" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019c7242-277b-7c5c-934c-55456a882ec4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019c7242-277b-73a0-b32c-56746849bb02" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019c7242-277b-73ec-ac80-6b99afb376a7" xlink:to="loc_us-gaap_OperatingExpenses_019c7242-277b-73a0-b32c-56746849bb02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c7242-277b-7c76-87b8-56897a0518a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019c7242-277b-73ec-ac80-6b99afb376a7" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c7242-277b-7c76-87b8-56897a0518a1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/SegmentInformationNetLossDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#SegmentInformationNetLossDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/SegmentInformationNetLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7e61-b06a-19df764f929c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019c7242-277b-75e9-8ebd-9ea20a1b5b1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7e61-b06a-19df764f929c" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019c7242-277b-75e9-8ebd-9ea20a1b5b1b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_019c7242-277b-744f-b84e-872b5f6b689d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7e61-b06a-19df764f929c" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_019c7242-277b-744f-b84e-872b5f6b689d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_CorporateExpenses_019c7242-277b-7675-8326-22d4e152b6f4" xlink:href="pbi-20260331.xsd#pbi_CorporateExpenses"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7e61-b06a-19df764f929c" xlink:to="loc_pbi_CorporateExpenses_019c7242-277b-7675-8326-22d4e152b6f4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019c7242-277b-771d-a793-8ba63ae6719f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7e61-b06a-19df764f929c" xlink:to="loc_us-gaap_RestructuringCharges_019c7242-277b-771d-a793-8ba63ae6719f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod_019d736b-e929-7731-9c17-3232575690ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7e61-b06a-19df764f929c" xlink:to="loc_us-gaap_DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod_019d736b-e929-7731-9c17-3232575690ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019c7242-277b-7d38-8fc2-70698432f638" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7e61-b06a-19df764f929c" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019c7242-277b-7d38-8fc2-70698432f638" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019c7242-277b-7b5b-b449-1bc8c78fa330" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7e61-b06a-19df764f929c" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019c7242-277b-7b5b-b449-1bc8c78fa330" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_TransactionAndStrategicReviewCosts_019c7242-277b-7060-83e4-e484304a112f" xlink:href="pbi-20260331.xsd#pbi_TransactionAndStrategicReviewCosts"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c7242-277b-7e61-b06a-19df764f929c" xlink:to="loc_pbi_TransactionAndStrategicReviewCosts_019c7242-277b-7060-83e4-e484304a112f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/EarningsperShareEPSDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#EarningsperShareEPSDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/EarningsperShareEPSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019c7242-277b-77e2-b3ee-a1b21149d1b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_019c7242-277b-7d1d-98e2-083df1d2de69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019c7242-277b-77e2-b3ee-a1b21149d1b8" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_019c7242-277b-7d1d-98e2-083df1d2de69" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019c7242-277b-72a4-be50-8783e753b58c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019c7242-277b-77e2-b3ee-a1b21149d1b8" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019c7242-277b-72a4-be50-8783e753b58c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/InventoriesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#InventoriesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/InventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019c7242-277b-7865-afb6-8132e5ff2896" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_019c7242-277b-7cc7-b5f0-d833689538b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019c7242-277b-7865-afb6-8132e5ff2896" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_019c7242-277b-7cc7-b5f0-d833689538b4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherInventoryNetOfReserves_019c7242-277b-77db-8927-b85d50963bb6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherInventoryNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019c7242-277b-7865-afb6-8132e5ff2896" xlink:to="loc_us-gaap_OtherInventoryNetOfReserves_019c7242-277b-77db-8927-b85d50963bb6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019c7242-277b-7ebb-a6fa-0eb43784ed75" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019c7242-277b-7865-afb6-8132e5ff2896" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019c7242-277b-7ebb-a6fa-0eb43784ed75" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesFinanceReceivablesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FinanceAssetsandLessorOperatingLeasesFinanceReceivablesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesFinanceReceivablesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableNet_019c7242-277b-7a4c-a2d5-5dc986b6db7b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesReceivableNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableBeforeAllowanceForCreditLossAndFee_019c7242-277b-7e2f-b158-c0792b729b85" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableBeforeAllowanceForCreditLossAndFee"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019c7242-277b-7a4c-a2d5-5dc986b6db7b" xlink:to="loc_us-gaap_FinancingReceivableBeforeAllowanceForCreditLossAndFee_019c7242-277b-7e2f-b158-c0792b729b85" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivableUnguaranteedResidualValues_019c7242-277b-78b0-afaf-b219c7ed785a" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivableUnguaranteedResidualValues"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019c7242-277b-7a4c-a2d5-5dc986b6db7b" xlink:to="loc_pbi_FinancingReceivableUnguaranteedResidualValues_019c7242-277b-78b0-afaf-b219c7ed785a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivableUnearnedIncome_019c7242-277b-7bb6-9f1d-c4bcc4aa7b39" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivableUnearnedIncome"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019c7242-277b-7a4c-a2d5-5dc986b6db7b" xlink:to="loc_pbi_FinancingReceivableUnearnedIncome_019c7242-277b-7bb6-9f1d-c4bcc4aa7b39" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_019c7242-277b-7698-baab-0434d47b29c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019c7242-277b-7a4c-a2d5-5dc986b6db7b" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_019c7242-277b-7698-baab-0434d47b29c2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesSalestypeLeaseandLoanReceivablesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FinanceAssetsandLessorOperatingLeasesSalestypeLeaseandLoanReceivablesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesSalestypeLeaseandLoanReceivablesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceived_019c7242-277b-7876-be6e-2d4afdcfb52f" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivablePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019c7242-277b-7554-865c-892c819fd419" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivablePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019c7242-277b-7876-be6e-2d4afdcfb52f" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019c7242-277b-7554-865c-892c819fd419" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedNextTwelveMonths_019c7242-277b-7af0-ac90-139456057151" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivablePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019c7242-277b-7876-be6e-2d4afdcfb52f" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedNextTwelveMonths_019c7242-277b-7af0-ac90-139456057151" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedTwoYears_019c7242-277b-7f20-9f5b-46c8ac5a842b" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivablePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019c7242-277b-7876-be6e-2d4afdcfb52f" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedTwoYears_019c7242-277b-7f20-9f5b-46c8ac5a842b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedThreeYears_019c7242-277b-7849-a78f-1def047f9a4b" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivablePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019c7242-277b-7876-be6e-2d4afdcfb52f" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedThreeYears_019c7242-277b-7849-a78f-1def047f9a4b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedFourYears_019c7242-277b-7e7b-8840-3e16f3dd0c96" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivablePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019c7242-277b-7876-be6e-2d4afdcfb52f" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedFourYears_019c7242-277b-7e7b-8840-3e16f3dd0c96" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedAfterYearFour_019c7242-277b-7b29-bc16-3fe0ccaf34ce" xlink:href="pbi-20260331.xsd#pbi_FinancingReceivablePaymentsToBeReceivedAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019c7242-277b-7876-be6e-2d4afdcfb52f" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedAfterYearFour_019c7242-277b-7b29-bc16-3fe0ccaf34ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019c7242-277b-7b0c-aee9-b1e4dd93264e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019c7242-277b-79f5-8b34-3c79f6654b8e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019c7242-277b-7b0c-aee9-b1e4dd93264e" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019c7242-277b-79f5-8b34-3c79f6654b8e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_019c7242-277b-74c7-8b7b-1b2973418ed2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019c7242-277b-7b0c-aee9-b1e4dd93264e" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_019c7242-277b-74c7-8b7b-1b2973418ed2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_019c7242-277b-74fe-bf17-4d60b4184c2e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019c7242-277b-7b0c-aee9-b1e4dd93264e" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_019c7242-277b-74fe-bf17-4d60b4184c2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_019c7242-277b-7a86-a9af-945e97d54a9f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019c7242-277b-7b0c-aee9-b1e4dd93264e" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_019c7242-277b-7a86-a9af-945e97d54a9f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_019c7242-277b-7035-9b78-76f24dd06613" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019c7242-277b-7b0c-aee9-b1e4dd93264e" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_019c7242-277b-7035-9b78-76f24dd06613" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour_019c7242-277b-74c9-8f02-0eb65de2cbea" xlink:href="pbi-20260331.xsd#pbi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019c7242-277b-7b0c-aee9-b1e4dd93264e" xlink:to="loc_pbi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour_019c7242-277b-74c9-8f02-0eb65de2cbea" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesWriteOffsDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FinanceAssetsandLessorOperatingLeasesWriteOffsDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesWriteOffsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019c7242-2831-7752-ac20-ec81ba39cbfe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff_019c7242-2831-7315-b913-e021ad795140" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019c7242-2831-7752-ac20-ec81ba39cbfe" xlink:to="loc_us-gaap_FinancingReceivableYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff_019c7242-2831-7315-b913-e021ad795140" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff_019c7242-2831-7144-9184-54b8aad9e676" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019c7242-2831-7752-ac20-ec81ba39cbfe" xlink:to="loc_us-gaap_FinancingReceivableYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff_019c7242-2831-7144-9184-54b8aad9e676" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearOneOriginatedCurrentFiscalYearWriteoff_019c7242-2831-7a2c-9d0c-045905ca7136" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableYearOneOriginatedCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019c7242-2831-7752-ac20-ec81ba39cbfe" xlink:to="loc_us-gaap_FinancingReceivableYearOneOriginatedCurrentFiscalYearWriteoff_019c7242-2831-7a2c-9d0c-045905ca7136" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff_019c7242-2831-72bb-8aab-2b1b03551daa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019c7242-2831-7752-ac20-ec81ba39cbfe" xlink:to="loc_us-gaap_FinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff_019c7242-2831-72bb-8aab-2b1b03551daa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff_019c7242-2831-7ebb-b6f5-a92f8ac71efb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019c7242-2831-7752-ac20-ec81ba39cbfe" xlink:to="loc_us-gaap_FinancingReceivableOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff_019c7242-2831-7ebb-b6f5-a92f8ac71efb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff_019c7242-2831-7e00-9a78-f412be127b21" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019c7242-2831-7752-ac20-ec81ba39cbfe" xlink:to="loc_us-gaap_FinancingReceivableYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff_019c7242-2831-7e00-9a78-f412be127b21" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesCreditQualityDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FinanceAssetsandLessorOperatingLeasesCreditQualityDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesCreditQualityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableGross_019c7242-2831-7709-9876-08174e25505d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesReceivableGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear_019c7242-2831-735c-92ba-fe85045e23dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019c7242-2831-7709-9876-08174e25505d" xlink:to="loc_us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear_019c7242-2831-735c-92ba-fe85045e23dc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear_019c7242-2831-7beb-8a55-c2d364d4768c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019c7242-2831-7709-9876-08174e25505d" xlink:to="loc_us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear_019c7242-2831-7beb-8a55-c2d364d4768c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear_019c7242-2831-731f-8a45-18f5b27a28a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019c7242-2831-7709-9876-08174e25505d" xlink:to="loc_us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear_019c7242-2831-731f-8a45-18f5b27a28a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear_019c7242-2831-7d93-b9cc-d9342049307d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019c7242-2831-7709-9876-08174e25505d" xlink:to="loc_us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear_019c7242-2831-7d93-b9cc-d9342049307d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear_019c7242-2831-721f-8328-469707c1819a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019c7242-2831-7709-9876-08174e25505d" xlink:to="loc_us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear_019c7242-2831-721f-8328-469707c1819a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear_019c7242-2831-7497-bf5b-be3c374e081f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019c7242-2831-7709-9876-08174e25505d" xlink:to="loc_us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear_019c7242-2831-7497-bf5b-be3c374e081f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesLeaseIncomeDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FinanceAssetsandLessorOperatingLeasesLeaseIncomeDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesLeaseIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseLeaseIncome_019c7242-2831-7c5f-9473-ef76b45dd860" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseLeaseIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseSellingProfitLoss_019c7242-2831-7fab-a890-2397a943663e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseSellingProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseIncome_019c7242-2831-7c5f-9473-ef76b45dd860" xlink:to="loc_us-gaap_SalesTypeLeaseSellingProfitLoss_019c7242-2831-7fab-a890-2397a943663e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseInterestIncome_019c7242-2831-7a0a-9917-3dabca81853f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseInterestIncome"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseIncome_019c7242-2831-7c5f-9473-ef76b45dd860" xlink:to="loc_us-gaap_SalesTypeLeaseInterestIncome_019c7242-2831-7a0a-9917-3dabca81853f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesOperatingLeasesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FinanceAssetsandLessorOperatingLeasesOperatingLeasesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesOperatingLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019c7242-2831-7df0-a102-a2bace1ed796" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_019c7242-2831-775b-b1ce-6c2f64bd11a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019c7242-2831-7df0-a102-a2bace1ed796" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_019c7242-2831-775b-b1ce-6c2f64bd11a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_019c7242-2831-7bdd-b3ba-da7cbc30962f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019c7242-2831-7df0-a102-a2bace1ed796" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_019c7242-2831-7bdd-b3ba-da7cbc30962f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_019c7242-2831-7856-9a6e-a1e1b03453b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019c7242-2831-7df0-a102-a2bace1ed796" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_019c7242-2831-7856-9a6e-a1e1b03453b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_019c7242-2831-7497-9bee-8257b4abdc62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019c7242-2831-7df0-a102-a2bace1ed796" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_019c7242-2831-7497-9bee-8257b4abdc62" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_019c7242-2831-708c-ba96-d48d8b588c0c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019c7242-2831-7df0-a102-a2bace1ed796" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_019c7242-2831-708c-ba96-d48d8b588c0c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_LessorOperatingLeasePaymentToBeReceivedAfterYearFour_019c7242-2831-762b-951f-29afd9f7f3ce" xlink:href="pbi-20260331.xsd#pbi_LessorOperatingLeasePaymentToBeReceivedAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019c7242-2831-7df0-a102-a2bace1ed796" xlink:to="loc_pbi_LessorOperatingLeasePaymentToBeReceivedAfterYearFour_019c7242-2831-762b-951f-29afd9f7f3ce" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/IntangibleAssetsandGoodwillIntangibleAssetsDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#IntangibleAssetsandGoodwillIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/IntangibleAssetsandGoodwillIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7e7f-b4f2-1f121abe5f49" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019c7242-2831-7539-8821-abd5e4601c2e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7e7f-b4f2-1f121abe5f49" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019c7242-2831-7539-8821-abd5e4601c2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019c7242-2831-7bee-be37-0f6d86aa55b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7e7f-b4f2-1f121abe5f49" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019c7242-2831-7bee-be37-0f6d86aa55b3" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/IntangibleAssetsandGoodwillFutureAmortizationExpenseDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#IntangibleAssetsandGoodwillFutureAmortizationExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/IntangibleAssetsandGoodwillFutureAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7f9f-969d-3b3deebac168" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019c7242-2831-7773-a3ad-de4ac76fd8e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7f9f-969d-3b3deebac168" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019c7242-2831-7773-a3ad-de4ac76fd8e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019c7242-2831-7fd0-85b8-dca4085aa4db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7f9f-969d-3b3deebac168" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019c7242-2831-7fd0-85b8-dca4085aa4db" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019c7242-2831-7fb4-a7f8-6d2a47c1e627" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7f9f-969d-3b3deebac168" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019c7242-2831-7fb4-a7f8-6d2a47c1e627" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019c7242-2831-759d-828b-db8ca2a74462" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7f9f-969d-3b3deebac168" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019c7242-2831-759d-828b-db8ca2a74462" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019c7242-2831-7802-9063-667632395f1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7f9f-969d-3b3deebac168" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019c7242-2831-7802-9063-667632395f1e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_019c7242-2831-710a-9430-687438e290b6" xlink:href="pbi-20260331.xsd#pbi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019c7242-2831-7f9f-969d-3b3deebac168" xlink:to="loc_pbi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_019c7242-2831-710a-9430-687438e290b6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FairValueMeasurementsandDerivativeInstrumentsAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_019c7242-2831-7686-98f9-c6313b9f6f0f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_DeferredCompensationObligationFairValueDisclosure_019c7242-2831-7161-9b4b-bb8abd41788f" xlink:href="pbi-20260331.xsd#pbi_DeferredCompensationObligationFairValueDisclosure"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_019c7242-2831-7686-98f9-c6313b9f6f0f" xlink:to="loc_pbi_DeferredCompensationObligationFairValueDisclosure_019c7242-2831-7161-9b4b-bb8abd41788f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019c7242-2831-7a3a-8423-80f3b00aeb1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019c7242-2831-755d-92be-38f9d2171cd2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019c7242-2831-7a3a-8423-80f3b00aeb1f" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019c7242-2831-755d-92be-38f9d2171cd2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_DebtSecuritiesAvailableForSaleAndCashEquivalents_019c7242-2831-74f2-8d4d-5c77c8ea7b27" xlink:href="pbi-20260331.xsd#pbi_DebtSecuritiesAvailableForSaleAndCashEquivalents"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019c7242-2831-7a3a-8423-80f3b00aeb1f" xlink:to="loc_pbi_DebtSecuritiesAvailableForSaleAndCashEquivalents_019c7242-2831-74f2-8d4d-5c77c8ea7b27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-7ec3-a814-9673925e2342" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019c7242-2831-7a3a-8423-80f3b00aeb1f" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-7ec3-a814-9673925e2342" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019c7242-2831-7c96-9de8-33f34ea35b04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-7c5e-b016-40374923d94d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019c7242-2831-7c96-9de8-33f34ea35b04" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-7c5e-b016-40374923d94d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_019c7242-2831-79bd-b082-2ab616f7e01d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019c7242-2831-7c96-9de8-33f34ea35b04" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_019c7242-2831-79bd-b082-2ab616f7e01d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_019c7242-2831-7c37-b861-b2770872a912" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019c7242-2831-7c96-9de8-33f34ea35b04" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_019c7242-2831-7c37-b861-b2770872a912" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasuresandDerivativeInstrumentsScheduleofFairValueofAvailableforsaleSecuritiesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FairValueMeasuresandDerivativeInstrumentsScheduleofFairValueofAvailableforsaleSecuritiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasuresandDerivativeInstrumentsScheduleofFairValueofAvailableforsaleSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-78ba-98cf-1c44d090b50b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_019c7242-2831-7920-bc1f-5c2194ebdb1d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-78ba-98cf-1c44d090b50b" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_019c7242-2831-7920-bc1f-5c2194ebdb1d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_019c7242-2831-7de8-89e9-6b3b59ffcc4b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-78ba-98cf-1c44d090b50b" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_019c7242-2831-7de8-89e9-6b3b59ffcc4b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesMaturitiesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesMaturitiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesMaturitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019c7242-2831-7161-9836-db941ada1757" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_019c7242-2831-7ab5-978c-883a6e08aefc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019c7242-2831-7161-9836-db941ada1757" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_019c7242-2831-7ab5-978c-883a6e08aefc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_019c7242-2831-7113-a143-f341b8d1b16d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019c7242-2831-7161-9836-db941ada1757" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_019c7242-2831-7113-a143-f341b8d1b16d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_019c7242-2831-7100-bf8a-dd05f1428519" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019c7242-2831-7161-9836-db941ada1757" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_019c7242-2831-7100-bf8a-dd05f1428519" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_019c7242-2831-7ec3-b984-b4fc98aeb900" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019c7242-2831-7161-9836-db941ada1757" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_019c7242-2831-7ec3-b984-b4fc98aeb900" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-79e1-87c6-c4c39ebf6bf2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_019c7242-2831-7866-8e7e-891fcfc71604" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-79e1-87c6-c4c39ebf6bf2" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_019c7242-2831-7866-8e7e-891fcfc71604" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019c7242-2831-7cee-9488-38cca83eeaa1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-79e1-87c6-c4c39ebf6bf2" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019c7242-2831-7cee-9488-38cca83eeaa1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_019c7242-2831-700f-aee2-4d5fe0836102" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-79e1-87c6-c4c39ebf6bf2" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_019c7242-2831-700f-aee2-4d5fe0836102" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_019c7242-2831-738f-886b-6e3666c832e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019c7242-2831-79e1-87c6-c4c39ebf6bf2" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_019c7242-2831-738f-886b-6e3666c832e1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsHeldtoMaturitiesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#FairValueMeasurementsandDerivativeInstrumentsHeldtoMaturitiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsHeldtoMaturitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_019c7242-2831-76ec-9a0a-9d856fdddc16" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019c7242-2831-78d8-a582-83a24be29e13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_019c7242-2831-76ec-9a0a-9d856fdddc16" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019c7242-2831-78d8-a582-83a24be29e13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_019c7242-2831-714b-8ff1-419fba9f27a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_019c7242-2831-76ec-9a0a-9d856fdddc16" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_019c7242-2831-714b-8ff1-419fba9f27a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount_019d4729-edff-7d36-8a49-6e2e508037ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_019c7242-2831-76ec-9a0a-9d856fdddc16" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount_019d4729-edff-7d36-8a49-6e2e508037ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_019c7242-2831-7334-9097-95894a182544" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019c7242-2831-7783-a3cc-d30a9b2e6756" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_019c7242-2831-7334-9097-95894a182544" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019c7242-2831-7783-a3cc-d30a9b2e6756" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019c7242-2831-7261-a2a5-1debdeb9bee9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_019c7242-2831-7334-9097-95894a182544" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019c7242-2831-7261-a2a5-1debdeb9bee9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue_019d472a-04f4-7a03-a6fd-350c05bbe2dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_019c7242-2831-7334-9097-95894a182544" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue_019d472a-04f4-7a03-a6fd-350c05bbe2dc" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/RestructuringChargesComponentsofRestructuringExpenseDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#RestructuringChargesComponentsofRestructuringExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/RestructuringChargesComponentsofRestructuringExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019c7242-2831-792f-9465-1c18e05063e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeveranceCosts1_019c7242-2831-7a56-9c5f-ae4404c48c74" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeveranceCosts1"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCharges_019c7242-2831-792f-9465-1c18e05063e6" xlink:to="loc_us-gaap_SeveranceCosts1_019c7242-2831-7a56-9c5f-ae4404c48c74" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessExitCosts1_019c7242-2831-723a-9e7c-f402d2f6945e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessExitCosts1"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCharges_019c7242-2831-792f-9465-1c18e05063e6" xlink:to="loc_us-gaap_BusinessExitCosts1_019c7242-2831-723a-9e7c-f402d2f6945e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/DebtScheduleofDebtDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#DebtScheduleofDebtDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/DebtScheduleofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019c7242-2831-7925-978c-a552ee31df89" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019c7242-2831-78fb-a275-c7391e1fa98a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019c7242-2831-7925-978c-a552ee31df89" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019c7242-2831-78fb-a275-c7391e1fa98a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019c7242-2831-76bf-b256-9e759fb3da98" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019c7242-2831-7925-978c-a552ee31df89" xlink:to="loc_us-gaap_LongTermDebtCurrent_019c7242-2831-76bf-b256-9e759fb3da98" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/DebtScheduleofDebtDetails_1" xlink:type="simple" xlink:href="pbi-20260331.xsd#DebtScheduleofDebtDetails_1"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/DebtScheduleofDebtDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019c7242-2831-7dbb-aeb2-25f8cba33a30" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_019c7242-2831-74e3-8f43-1f536e27241a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019c7242-2831-7dbb-aeb2-25f8cba33a30" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_019c7242-2831-74e3-8f43-1f536e27241a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019c7242-2831-7f2e-bc3f-de820fe9d45f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019c7242-2831-7dbb-aeb2-25f8cba33a30" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019c7242-2831-7f2e-bc3f-de820fe9d45f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/PensionsandOtherBenefitProgramsComponentsofNetPeriodicBenefitIncomeCostDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#PensionsandOtherBenefitProgramsComponentsofNetPeriodicBenefitIncomeCostDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/PensionsandOtherBenefitProgramsComponentsofNetPeriodicBenefitIncomeCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019c7242-2831-7de8-a55a-b83554a5241f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_019c7242-2831-758e-b77d-dc9e62b2968f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019c7242-2831-7de8-a55a-b83554a5241f" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_019c7242-2831-758e-b77d-dc9e62b2968f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_019c7242-2831-7356-aeba-c97caf99d373" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019c7242-2831-7de8-a55a-b83554a5241f" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_019c7242-2831-7356-aeba-c97caf99d373" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_019c7242-2831-7bc2-8564-ed66edbc6dcc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019c7242-2831-7de8-a55a-b83554a5241f" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_019c7242-2831-7bc2-8564-ed66edbc6dcc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_019c7242-2831-7c96-be6a-54034066b9ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019c7242-2831-7de8-a55a-b83554a5241f" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_019c7242-2831-7c96-be6a-54034066b9ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_019c7242-2831-74d8-9a9d-41d99984d08c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019c7242-2831-7de8-a55a-b83554a5241f" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_019c7242-2831-74d8-9a9d-41d99984d08c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/AccumulatedOtherComprehensiveLossChangesDetails" xlink:type="simple" xlink:href="pbi-20260331.xsd#AccumulatedOtherComprehensiveLossChangesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/AccumulatedOtherComprehensiveLossChangesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019c7242-2831-7dc0-9a73-cd25928fe144" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_019c7242-2831-7779-8417-c4971561ecdb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019c7242-2831-7dc0-9a73-cd25928fe144" xlink:to="loc_us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_019c7242-2831-7779-8417-c4971561ecdb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent_019c7242-2831-778c-b3a4-204d763b2bdc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019c7242-2831-7dc0-9a73-cd25928fe144" xlink:to="loc_us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent_019c7242-2831-778c-b3a4-204d763b2bdc" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
