Compound Interest Calculator

Free compound interest calculator with yearly breakdown, monthly contributions, and chart visualization. No signup, browser-based.

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Frequently asked questions

What is compound interest?
Compound interest earns returns on both principal and previously accumulated interest, making money grow faster than simple interest.
How does compounding frequency affect results?
More frequent compounding (daily vs yearly) produces slightly higher returns. The difference is small for typical rates but grows over time.
Does it include monthly contributions?
Yes. Enter a monthly contribution and the calculator projects growth showing total contributions and total interest separately.