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Compound Interest Calculator

Calculate the future value of your investment

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Final Amount
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FAQ
What is compound interest?
Compound interest is interest calculated on both the initial principal and accumulated interest. This interest-on-interest effect makes savings grow faster over time.
How does compounding frequency matter?
More frequent compounding (daily vs annually) yields slightly higher returns because interest is added and starts earning sooner.
What is the rule of 72?
Divide 72 by the annual interest rate to estimate years to double your money. At 6%, money doubles in about 12 years.
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The Power of Compound Interest

Compound interest earns returns on both principal and accumulated interest. The longer the period and more frequent the compounding, the greater the growth.

This calculator factors in initial principal, annual rate, period, compounding frequency, and monthly contributions to show your final amount and interest earned.