Compound Interest Calculator

Calculate compound interest with different compounding periods.

100% free
No sign-up
Instant results
Privacy-friendly

Principal amount Annual rate (%) Time (years) Compounding frequency

About the Compound Interest Calculator

Calculate compound interest with different compounding periods. The Compound Interest Calculator on The 360 Tools is fast, accurate and completely free — no account, no downloads and no usage limits.

Like every tool in our finance collection, the Compound Interest Calculator runs directly in your browser. Your input is processed locally whenever possible, so results are instant and your data stays private.

How it works

1 Enter the amounts, rates and time periods
2 See totals, interest and payment schedules instantly
3 Adjust any input to compare scenarios side by side

Frequently asked questions

Is the Compound Interest Calculator free to use?

Yes. The Compound Interest Calculator is completely free with no sign-up, no hidden charges and no usage limits. All tools on The 360 Tools are free forever.

Is my data safe when using the Compound Interest Calculator?

Yes. Your input is processed locally in your browser whenever possible and is never stored on our servers or shared with third parties.

Does the Compound Interest Calculator work on mobile?

Yes. The Compound Interest Calculator is built mobile-first and works on any modern phone, tablet or desktop browser without installing anything.