Compound Interest
Powerful, free, and easy to use
Compound Interest Calculator
Calculate the future value of your investments with compound interest and regular contributions.
About the Compound Interest Calculator
The compound interest calculator shows how your money grows over time when interest earns interest on itself. Enter a principal amount, annual rate, and time horizon to see projected growth with yearly breakdowns. This tool is especially useful for comparing savings accounts, certificates of deposit, and other interest-bearing investments side by side.
How to Use
To use this calculator, start by entering your initial deposit or principal amount. Then set the annual interest rate and choose a compounding frequency such as daily, monthly, quarterly, or annually. Finally, specify how many years you plan to keep the investment untouched. The results will display your total balance, the interest earned, and a year-by-year growth chart so you can visualize the power of compounding over your chosen investment period.