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Interest Calculator

Future value equals the initial deposit multiplied by one plus the annual interest rate, raised to the number of years. Interest earned is future value minus the initial deposit.

This calculator is free to use. Enable JavaScript to enter your values and see a result instantly.

How it works

Future value equals the initial deposit multiplied by one plus the annual interest rate, raised to the number of years. Interest earned is future value minus the initial deposit.

Worked example

$10,000 invested at 5% annually for ten years grows to approximately $16,289.

Keep in mind

This version assumes annual compounding and a constant rate.

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