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See how savings grow with compound interest.
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Compound Interest Calculator shows how money grows when interest earns interest. Start with a lump sum, optionally add a monthly amount, and choose how often interest compounds — monthly, quarterly, half-yearly or yearly. The result shows the future value, total contributions and interest earned, with a year-by-year table.
Open Compound Interest Calculator
Launch Compound Interest Calculator directly in your browser — there is nothing to download, install, or configure first.
Enter your values
Type your numbers or details into Compound Interest Calculator — fields update as you go.
Read your result instantly
Compound Interest Calculator recalculates the moment you change an input, so there is no button to press and no waiting.
A = P × (1 + r/n)^(n × t). For example, 10,000 at 5% compounded yearly for 10 years grows to 16,288.95.
Yes — more frequent compounding gives slightly more, because interest starts earning interest sooner.
Yes. Compound Interest Calculator is completely free, with no account, no paywall, and no usage limits.
No. Compound Interest Calculator works instantly in any modern web browser — there is no software to install, no extension, and no sign-up.