Annuity Payout Calculator
Find how long an annuity lasts or how much you receive per period.
Annuity Payout Calculator
Find how long an annuity lasts or how much you receive per period.
Compound Growth Formula
ℹ️ Assumes monthly compounding. Past returns do not guarantee future results.
Disclaimer
Results provided by this calculator are for informational and educational purposes only. They are based on the values you enter and standard formulas, and should not be considered financial, medical, legal, or professional advice. Always consult a qualified professional before making important decisions based on these results. Roughtools makes no warranties regarding the accuracy or completeness of these calculations for your specific situation.
Frequently Asked Questions
Pro Tips
Time in the market beats timing the market. Missing just the 10 best trading days over 20 years can cut your returns in half. Stay invested through downturns.
Tax-advantaged accounts (401k, Roth IRA) let your investments grow tax-free or tax-deferred — always max these before investing in taxable accounts.
The Rule of 72: divide 72 by your annual return to estimate years to double. At 7%, money doubles every ~10.3 years. At 10%, every 7.2 years.
Increase your contribution by just 1% of salary each year you get a raise. You won't notice the difference in take-home pay, but it compounds dramatically over decades.
When to Use This Calculator
See how even small monthly contributions grow dramatically over time with compound returns — motivation to start immediately.
Calculate how much to save monthly to reach a college fund target in 10–18 years at a realistic return rate.
Project your portfolio balance at retirement based on current savings rate and expected returns.
Compare the outcome of investing a windfall now versus spreading it as monthly contributions over time.
Compare outcomes at different return rates (5%, 7%, 9%) to understand the impact of investment choice on final balance.
About the Annuity Payout Calculator
This annuity payout calculator determines how long a lump sum will last at a given withdrawal rate and interest rate, or calculates the maximum sustainable withdrawal amount. Enter your starting balance, annual interest rate, and desired withdrawal amount to see how many years your money will last. Critical for retirees planning sustainable income from savings or inherited lump sums.
How to Use the Annuity Payout Calculator
- 1
Enter your total savings or annuity lump sum amount.
- 2
Enter the expected annual interest rate your money earns while invested.
- 3
Enter your planned annual or monthly withdrawal amount.
- 4
The calculator shows how many years your money will last.
- 5
Adjust the withdrawal amount to find a sustainable rate that never depletes your funds.
Related Calculators
View all →Annuity Calculator
Calculate annuity payments for a given present value, rate, and period.
Retirement Calculator
Estimate retirement savings and how long your money will last.
RMD Calculator
Calculate Required Minimum Distributions from retirement accounts at age 73.
Present Value Calculator
Calculate the present value of future cash flows given a discount rate.
Savings Calculator
Calculate how much you'll save over time with regular deposits and interest.
Your input is processed locally in your browser and is never stored, transmitted, or shared with any server. See our Privacy Policy.