Annuity Payout Calculator
Enter a lump sum, interest rate, and payout duration to calculate your periodic annuity payment.
$100,000 at 5% pays $659.96 a month for 20 years, using PMT = PV × r(1+r)^n ÷ ((1+r)^n − 1).
Use the Annuity Payout Calculator
Annuity Parameters
| Period | Payment | Interest | Principal | Balance |
|---|
Fill in the parameters and click Calculate Payout
Quick answer
$100,000 at 5% pays $659.96 a month for 20 years, using PMT = PV × r(1+r)^n ÷ ((1+r)^n − 1). This is a fixed-term (period certain) payout. A lifetime annuity quote also depends on your age and the insurer, so use this as a benchmark, not a quote.
Examples
| Lump sum, rate, term | Monthly payout |
|---|---|
| $100,000, 5%, 10 years | $1,060.66 |
| $100,000, 5%, 20 years | $659.96 |
| $100,000, 5%, 30 years | $536.82 |
| $250,000, 5%, 20 years | $1,649.89 |
| $500,000, 4%, 25 years | $2,639.18 |
| $100,000, 5%, deferred 5 years, then 20 years | $842.29 |
Enter your lump sum and rate.
Summary
This calculator uses the standard annuity payment formula to determine how much periodic income a lump sum will generate over a fixed term. It supports immediate and deferred annuities, monthly or annual payout frequencies, and shows a full amortization breakdown.
How it works
- Enter the lump sum (present value) you have available.
- Set the annual interest rate offered by the annuity.
- Choose your payout frequency: monthly or annual.
- Enter the payout duration in years.
- Select immediate (payments start now) or deferred (payments start after a deferral period).
- The calculator applies PMT = PV × [r(1+r)^n] / [(1+r)^n − 1] to compute each payment.
Use cases
- Estimate monthly retirement income from a pension lump sum or 401(k) rollover.
- Compare immediate vs. deferred annuity options before purchasing a product.
- Determine how long a lump sum will last at a given interest rate and withdrawal amount.
- Plan structured settlement payouts or lottery winnings over a fixed term.