Retirement Income Gap Calculator

The monthly shortfall between your expenses and your retirement income.

Monthly expenses ($)What you'll spend each month

Monthly pension ($)Your pension income

Monthly Social Security ($)Your SS benefit

Other monthly income ($)Anything else

YearsHow long retirement lasts

Annual return (%)On savings (often 5%)

Monthly gap
Annual gap
Savings needed to fill it

Educational estimate. Excludes inflation and taxes.

How it works

It adds up your guaranteed monthly income, subtracts it from your expenses to find the gap, then calculates the savings needed to cover that gap for your whole retirement.

All retirement calculators

Social Security Taxation → Guide: How SS Is Taxed → Net Worth → 401(k) Growth → Traditional IRA → 72(t) SEPP → FIRE Number → Guide: Tax on 401(k) Withdrawal → Guide: When Should You Retire → Fixed Annuity → Deferred Annuity → Annuity vs CD → Guide: Immediate Annuity Income → Guide: Should You Take a Buyout → Guide: SS Spousal Benefits → Guide: Pension COLA Raises → Guide: How Much to Retire → Guide: How a Lump Sum Is Calculated → Guide: Lump Sum vs Monthly → Guide: How to Calculate Your RMD → Guide: Early Withdrawal Penalty → Pension Lump Sum Tax → Interest Rate Impact on Lump Sum → Early Retirement Reduction → Roth Conversion → Inherited IRA (10-Year Rule) → TSP (Thrift Savings Plan) → Cash Balance Pension → QDRO / Divorce Pension Value → Pension Lump Sum vs Monthly → Pension Buyout / Commuted Value → Pension Survivor Benefit → Pension COLA → Immediate Annuity Payout → Annuity vs Lump Sum → Annuity Present Value → How Long Savings Last → Withdrawal Rate → How Much to Retire → Inflation Impact → Social Security Break-Even → RMD (Required Minimum Distribution) → Social Security Spousal Benefit → Pension vs 401(k) Rollover → Early Withdrawal Penalty → Pension Maximization → 403(b) Retirement Calculator → 457(b) Retirement Calculator → Rule of 55 Calculator → Backdoor Roth IRA Calculator → Social Security Claiming Age Optimizer → Federal Pension (FERS) Calculator → Net Unrealized Appreciation (NUA) →