Compound Interest Calculator
Calculate how your money grows with compound interest over time, including optional periodic contributions. Choose the compounding frequency (annual, monthly, or daily) and see your final balance, total contributed, and interest earned.
How it works
- Enter the initial capital you want to invest or save.
- Enter the annual interest rate (%) offered by the financial product.
- Select the compounding frequency: annual, monthly, or daily.
- Enter the term in years and, if you'd like, an additional periodic contribution for each compounding period.
- The calculator shows the final balance, the total contributed (principal + contributions), and the total interest earned.
Use cases
- Projecting the growth of a savings or investment account over the long term.
- Comparing the effect of different compounding frequencies on the same principal.
- Estimating how much you need to contribute monthly to reach a savings goal.
- Visually understanding the power of compound interest versus simple interest.