Annuity Calculator

Payment from a nest egg, or future value from monthly deposits — ordinary annuity math. Click any i for detail.

Annuity

Solve for i Mode Payment from present value, or future value from deposits.
Annual interest rate (%) i Rate Nominal annual rate; compounded monthly in this worksheet.
Years i Years Length of the annuity in years.
Present value ($) i PV Starting principal you will draw down.
Monthly deposit ($) i PMT Amount you add each month.

How to use this calculator

Choose payment-from-PV or future-value-from-deposits.
Enter rate and years.
Enter PV or monthly deposit.
Read the solved payment or future value.

Results explained

This is ordinary-annuity arithmetic with monthly compounding: payment PMT = PV × r / (1 − (1+r)^(−n)), and future value FV = PMT × ((1+r)^n − 1) / r, where r is the monthly rate and n is months. It ignores fees, taxes, inflation, and insurance product riders. For retirement income products, read the contract — “annuity” in marketing is broader than this worksheet.

Quick reference: ordinary annuity

Monthly rate r = APR/12; n = years × 12.

Item	Detail
Payment mode	PMT from PV at rate r over n months
Growth mode	FV of level monthly deposits
Zero rate	PMT = PV/n; FV = PMT×n
Cousin	Compound interest calculator

Not a quote for an insurance annuity or pension.

How the estimate is built

PMT = PV·r/(1−(1+r)^(−n)); FV = PMT·((1+r)^n−1)/r.

Example scenario

$250,000 at 5% for 20 years → about $1,650/month (ordinary annuity payment sketch).

FAQ

Is this a fixed indexed annuity quote?

No. Those products layer caps, participation rates, and fees. This is plain time-value math.

Beginning vs end of period?

This page uses ordinary annuity (end of period) payments — the common loan/savings textbook default.

What about inflation?

Not modeled. A constant payment loses purchasing power unless you escalate deposits or withdrawals.

Can I add a balloon or residual value?

Not on this page. Use a more detailed amortization tool for residual/balloon structures.