Compound Interest Calculator

All tools

See how your money grows with compound interest. Set the principal, rate, time, compounding frequency and an optional monthly contribution to get the future value. Free and instant.

$
%
per year
$ per month
Optional — leave at 0 for a lump-sum only.
Future value –
Starting balance –
Total contributions –
Total interest earned –
The principal compounds at the chosen frequency. Monthly contributions are added at the end of each month and compounded monthly. Returns are assumed constant and taxes and inflation are not included.
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