Free online tool

Annuity Calculator

Enter the payment amount, interest rate and years to find the annuity future value.

Instant calculation

Annuity Calculator

Enter the payment amount, interest rate and years to find the annuity future value.

Your numbers stay in this browser. Nothing is uploaded or saved.

Three clear steps

How to use this calculator

  1. 01

    Enter payment

    Type the regular payment amount.

  2. 02

    Enter rate and years

    Provide the annual interest rate and number of years.

  3. 03

    See future value

    Calculate to see the total accumulated value.

The formula

How this calculation works

Each payment earns interest from the time it is made until the end of the term.

Annuity Calculator

FV = P × ((1+r)^n − 1) ÷ r where P=payment, r=periodic rate, n=periods

1000×((1.05^20−1)/0.05) = 1000×33.07 = $33,066

Check the method

Worked examples

Each example follows the same formula used by the calculator.

$1,000/year at 5% for 20 years — future value?

1000×((1.05^20−1)/0.05) = 1000×33.07 = $33,066$33,065.95

Common questions

Questions about this calculation

What is the Annuity Calculator?

The Annuity Calculator helps you calculate the future value of an annuity with regular payments. Enter your values and select Calculate to get an instant result.

How is the result calculated?

Each payment earns interest from the time it is made until the end of the term.

Can you show an example?

Example: $1,000/year at 5% for 20 years — future value? — $33,065.95.

Is my data saved when I use the Annuity Calculator?

No. All calculations run locally in your browser. Your inputs and results are never uploaded, stored or shared with anyone.

Is the Annuity Calculator free to use?

Yes. The Annuity Calculator is completely free. No account, sign-up or payment is required. It works on mobile, tablet and desktop.