Annuity Payout Calculator

Quick answer

The annuity payout calculator works out how much you can withdraw each period from a lump sum – for a fixed length of time, leaving an optional final balance – or how long a fixed withdrawal will last, with any payout frequency and timing.

$
%
$
$
Number of payouts
—
Withdrawal per period
$ —
Total withdrawals
$ —
Interest earned during the payout
$ —
How long the fixed withdrawal lasts
— years
Will the fixed withdrawal run out?
—

Retirees use payout calculations to turn savings into income. A longer payout period or a higher final balance lowers the withdrawal. Remember inflation: a fixed payout loses buying power each year.

How to use the Annuity Payout Calculator

  1. Starting balance
  2. Annual interest rate
  3. Payout frequency
  4. Payouts made at
  5. Payout length
  6. Balance left at the end
  7. Or: fixed withdrawal per period

Results update as you type, and every field accepts the units shown in its menu.

How it works

Enter the starting balance, interest rate, payout frequency, timing and length, and any balance to leave at the end – or a withdrawal amount to see how long it lasts.

Tips

  • Start early – time does more of the work than the amount you save.
  • Take the full employer match if your plan offers one.
  • Plan with a cautious return (4–6% after inflation) and check again every year.
  • Know the contribution limits and required minimum distribution rules for your accounts.

Common mistakes to avoid

  • Ignoring inflation when setting a retirement target.
  • Underestimating how long retirement can last.
  • Withdrawing early and paying penalties and taxes.

Inputs explained

Field What to enter
Starting balance Amount in your currency
Annual interest rate In %
Payout frequency Choose one: Monthly, Semi-monthly, Bi-weekly, Weekly …
Payouts made at Choose one: End of each period, Beginning of each period
Payout length Units: years, months
Balance left at the end Amount in your currency
Or: fixed withdrawal per period Amount in your currency

What each result means

  • Number of payouts = round([Payout length]×[Payout frequency])
  • Withdrawal per period = pmt([Rate per period], [Number of payouts], [Starting balance], [Balance left at the end], [Payouts made at])
  • Total withdrawals = [Withdrawal per period]×[Number of payouts]
  • Interest earned during the payout = [Total withdrawals] + [Balance left at the end] – [Starting balance]

Example values

How the main result changes when Starting balance changes and everything else stays at the example values above:

Starting balance Withdrawal per period
250,000 1,461.48
375,000 2,192.21
500,000 2,922.95
625,000 3,653.69
750,000 4,384.43
1,000,000 5,845.9

Formula

Withdrawal = (B − F ÷ (1 + i)^n) × i ÷ ((1 − (1 + i)^−n)(1 + i × timing))Length for a fixed withdrawal = nper(i, withdrawal, B) periods

Worked example

Inputs — Starting balance: $500,000; Annual interest rate: 5 %; Payout frequency: Monthly; Payouts made at: End of each period; Payout length: 25 years; Balance left at the end: $0; Or: fixed withdrawal per period: $3,000.
Results — Number of payouts = 300; Withdrawal per period = $2,922.95; Total withdrawals = $876,885.06; Interest earned during the payout = $376,885.06; How long the fixed withdrawal lasts = 23.8 years; Will the fixed withdrawal run out? = Yes – see how long it lasts.

Frequently asked questions

How much will an annuity pay out?

It depends on the balance, rate and payout length – $500,000 at 5% over 25 years pays about $2,900 a month.

What happens if the balance runs out?

Payouts stop; lifetime insurance annuities avoid this.

Should I leave a final balance?

If you want a legacy or a safety buffer.

What formula does the Annuity Payout Calculator use?

Withdrawal = (B − F ÷ (1 + i)^n) × i ÷ ((1 − (1 + i)^−n)(1 + i × timing)).

Sources

  1. U.S. SEC – Investor.gov compound interest and investing basics

Cite this calculator

Speedy Calculator. (2026). Annuity Payout Calculator. Speedy Calculator. https://speedycalculator.com/calculators/finance/annuity-payout/