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Finance Calculators

Annuity Calculator

Calculate the future value of an ordinary annuity — a series of fixed, regular payments earning compound interest.

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Future value
Total payments made
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About the Annuity Calculator

An ordinary annuity is a series of equal payments made at regular intervals, each of which earns compound interest until the end of the term. Retirement accounts and structured savings plans behave this way.

Formula: FV = PMT × [((1+r)n − 1) ÷ r], where PMT is the payment amount, r is the interest rate per period, and n is the total number of payments.

The gap between total payments made and the final future value represents the interest earned purely from compounding over time.

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