Free calculator · no signup

Annuity calculator

An annuity turns a lump sum into steady income. Estimate the monthly payment a sum could produce over a fixed period — or flip it to find the lump sum needed for the income you want.

What do you want to find?
$
Estimated monthly income
$2,639
From $500,000 paid out over 25 years — that's $31,670/year.
Total paid out
$791,755
Over
25 years
A simplified fixed-term estimate. Real annuity quotes include fees, options, and insurer pricing. This is an estimate, not advice or an offer.
Compare guaranteed income to drawdown
An annuity is one way to fund retirement; drawing from a portfolio is another. planbend models your full income picture — Social Security, pensions, and withdrawals — so you can see where guaranteed income fits. Free to start.

What an annuity does

An annuity trades a lump sum for a stream of payments. You give an insurer money, and they pay you back on a schedule — for a set number of years, or for life. The appeal is certainty: a paycheck you can count on regardless of what markets do. This calculator estimates the fixed-term case, showing the steady monthly amount a sum can support, or the sum required for a target payment.

The tradeoffs

Guaranteed income comes at a cost. Annuities often carry fees, can be complex, and lock up money you can't easily get back. Once you annuitize, that lump sum is generally gone as a flexible asset. For some, the certainty is worth it — especially as protection against outliving savings. For others, the fees and lost flexibility outweigh the benefit. Many people annuitize only a portion of their savings, covering essential expenses while keeping the rest invested and accessible.

Fixed-term versus lifetime

A fixed-term annuity pays for a defined stretch — say 20 or 25 years. A lifetime annuity pays as long as you live, which means you can't outlive it, but payments typically stop at death unless you add a survivor benefit or guarantee period. Lifetime versions transfer longevity risk to the insurer, which is their core value. This calculator models the simpler fixed-term math; real lifetime quotes depend heavily on your age and current interest rates.

planbend is a planning tool, not a financial advisor. This calculator is a simplified fixed-term estimate and not an annuity quote or offer. Real products include fees and options that change the outcome. For decisions about your own situation, the Resources page can help you find a licensed professional.

Common questions

What is an annuity?
A product that converts a lump sum into regular payments, often for retirement income. You pay an insurer, and they pay you for a fixed term or for life.
How much income will it pay?
It depends on the amount, payout period, rates, and age for lifetime versions. This tool estimates the fixed-term monthly payment a lump sum supports.
Are annuities a good idea?
They offer guaranteed income and longevity protection but carry fees and reduce flexibility. Whether one fits depends on your other income, health, and need for certainty.
Fixed-term vs lifetime?
Fixed-term pays for a set number of years; lifetime pays as long as you live, transferring longevity risk to the insurer. This calculator models the fixed-term case.