Compound Interest Calculator

Calculate compound interest with different compounding frequencies – annually, quarterly, monthly, or daily. See how your investment grows year by year.

How to use

  1. Enter the principal (starting) amount.
  2. Enter the annual interest rate in percentage.
  3. Enter the time period in years.
  4. Select compounding frequency (monthly is most common for banks).
  5. Click Calculate to see the total amount and interest earned.