Annuity Calculator

Use the free Annuity Calculator to calculate the future value of a series of equal payments (an annuity). Enter your values below and get an instant, accurate result.

Annuity Calculator

Free & Instant

The Annuity Calculator helps you calculate the future value of a series of equal payments (an annuity). Simply fill in the fields above and click Calculate to get an instant result.

This calculator is part of Calculate Wiki’s Finance Calculators collection.

What You’ll Need

  • Payment per Period ($)
  • Interest Rate per Period (%)
  • Number of Periods

Formula Used

FV = PMT × (((1 + r)ⁿ − 1) ÷ r)
where r = rate per period, n = number of periods, PMT = payment per period

Example Calculation

Using example inputs — Payment per Period = 200 $; Interest Rate per Period = 4 %; Number of Periods = 20 — the Annuity Calculator returns:

ValueResult
Total contributed$4,000.00
Interest earned$1,955.62
Future value$5,955.62

$5,955.62. Future value of 20 payments of $200.00.

Helpful Information

Results from the Annuity Calculator are estimates based on standard formulas used in the finance calculators field. For projects with significant cost, health, or safety implications, consider verifying results with a qualified professional.

Frequently Asked Questions

Is the Annuity Calculator free to use?
Yes — the Annuity Calculator on Calculate Wiki is completely free, with no sign-up required.
How accurate is the Annuity Calculator?
The Annuity Calculator uses a standard, well-documented formula from the finance calculators field. Results are for informational and planning purposes.
Can I use this on my phone?
Yes, this calculator is fully mobile-friendly and works on any modern browser.
What does the result mean?
For the example values shown above, the result is $5,955.62. Future value of 20 payments of $200.00.

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