Compound Interest Calculator
See how compounding frequency changes your returns — P, rate, time, and payout schedule.
About this tool
Compound interest is interest earning interest on itself — the engine behind long-term investing. This calculator lets you choose how often compounding happens, because monthly compounding genuinely grows money faster than yearly compounding at the same rate.
Watch how small changes in rate, time, or frequency reshape the final total. Time is the biggest lever of all.
How to use
- Enter the principal amount.
- Enter the annual interest rate and time in years.
- Choose the compounding frequency (yearly to daily).
- Compare the interest earned and total amount.
Frequently asked questions
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