Annuity Payout Calculator
Last updated: July 2026
Estimate a fixed monthly payout from a lump sum.
Estimated monthly payout
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- Total payouts: —
- Estimated investment earnings: —
On this page
Quick summary: Estimate a fixed monthly payout from a lump sum. Enter the requested values, calculate, review the result, and compare more than one realistic scenario before making a decision.
Read the complete guide
What this calculator does
The Annuity Payout Calculator estimates periodic withdrawals that may be supported by a balance over a chosen period under an assumed rate of return.
How to use the calculator step by step
Enter the starting balance, payout period, expected interest or return rate, and payment frequency requested by the page. Test more conservative rates when planning long-term withdrawals.
How the calculation works
A level annuity payout is based on the present value of the balance, periodic rate, and number of payments. Each payout generally contains both investment earnings and a return of principal.
Worked example and scenario testing
A 200,000 balance paid out over 20 years at a fixed assumed return can support a larger periodic payment than the same balance earning no return.
How to interpret your result
The calculated payment is a mathematical estimate based on constant assumptions. It does not guarantee that an actual annuity contract or investment account will pay the same amount.
Accuracy, assumptions, and limitations
Taxes, fees, insurer guarantees, mortality credits, market returns, inflation, surrender charges, and contract options can materially change real payouts.
Common mistakes to avoid
Do not compare a guaranteed insurer annuity directly with an investment-withdrawal estimate unless the assumptions and guarantees are equivalent.
Privacy and browser-based calculations
Only balance, rate, and term values are needed. Do not enter policy or retirement-account numbers.