Annuity Payout Calculator

Calculate the monthly payout from a fixed annuity that depletes the principal over the term. Free and accurate.

Independently verified for accuracy

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Monthly payout
$3,299.78
Total payout
$791,946.89

Calculate the fixed monthly payout from an annuity that fully depletes its principal over a set number of years at a given rate. It helps retirees and savers see how much steady income a lump sum can produce across the payout term.

How this is calculated

The monthly payout uses the standard amortization formula, treating the principal like a loan repaid over the term at the monthly rate, with total payout equal to the monthly amount times the number of months.

How to use

  1. Enter the annuity principal.
  2. Enter the annual interest rate and the payout term in years.
  3. Read the monthly payout and the total paid out over the term.

Examples

  • $500,000 at 5% / 20 yr: monthly payout $3,299.78
  • Total over term: $500,000 at 5% / 20 yr → $791,946.89

FAQ

How is the monthly payout calculated?
It uses the amortization formula: Payout = P·r·(1+r)^n / ((1+r)^n − 1), where P is the principal, r is the monthly rate (annual ÷ 12 ÷ 100), and n is the number of months. The principal is fully depleted by the end of the term.
What is the total payout?
The total amount paid out over the entire term, the monthly payout multiplied by the number of months.
Does it work for a 0% annuity?
Yes. At 0% the monthly payout is simply the principal divided by the number of months.

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