Compound Interest Calculator
Calculate the future value and interest from principal, annual rate, term, and compounding frequency (yearly to daily). Everything runs in your browser.
Enter principal, rate, and years
FAQ
How is compound interest calculated?
Future value = principal × (1 + rate ÷ n)^(n × years), where n is the compounding frequency.
Does compounding frequency matter?
Yes. For the same rate, more frequent compounding (e.g. daily) yields a slightly higher future value.
Does it account for taxes?
It shows pre-tax figures for reference. Actual amounts vary with interest income tax and other factors.
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