Future Value of Annuity Calculator

About this calculator

For an ordinary annuity — equal payments made at the end of each period — the future value is FV = PMT × [(1 + r)ⁿ − 1] / r, where PMT is the periodic payment, r the periodic interest rate, and n the number of periods. It's the compound-interest mirror image of a loan amortization formula, tracking how each deposit grows for a different number of remaining periods.

Savers use it to project how a recurring 401(k) contribution or monthly deposit into an investment account grows by retirement, and financial planners use the same formula to size the regular deposits needed to hit a target future goal, from a house down payment to a college fund.