Annuity Calculator
Calculate the future value of an annuity with regular periodic payments and compound interest.
How Annuities Work
An annuity is a series of equal payments made at regular intervals. The future value of an ordinary annuity is calculated using: FV = P × ((1+r)^n − 1) / r + PV × (1+r)^n, where P is the periodic payment, r is the periodic interest rate, n is the number of periods, and PV is the initial principal. This calculator compounds interest at the selected frequency, allowing you to see how your regular contributions grow over time.
About this Calculator
The Annuity Calculator is a free, easy-to-use tool for retirement, pension, income. Simply enter your values and get instant, accurate results — no signup, no ads, no tracking. All calculations run locally in your browser, so your data stays completely private.
Privacy Note: All calculations are performed locally in your browser. No data is ever sent to a server or third party.