MONEY & FINANCE

Compound interest calculator.

See how an initial amount grows with interest on interest.

Your numbers

01
Display only. No exchange-rate conversion.

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Your result

02

Enter your numbers and select Calculate.

Estimate based on the values shown.

BEHIND THE NUMBERS

How it works

Future value = principal × (1 + annual rate ÷ 12)^(12 × years).

A worked example

1,000 at 5% nominal annual interest, compounded monthly for 10 years, grows to about 1,647.01.

What to keep in mind

Assumes monthly compounding and a constant nominal rate. Excludes tax, inflation and fees; growth is not guaranteed.

A common question

How often is interest compounded?

Monthly. Enter a nominal annual rate, not an effective annual yield or AER.

For general information and planning, not personalised financial or tax advice. Verify important decisions with a qualified adviser.