Free calculator
Compound Interest Calculator
Calculate compound interest and see how your investment grows over time. Visualize wealth growth with monthly compounding.
Investment Details
How to Use the Compound Interest Calculator
Enter your initial investment, annual interest rate, and the number of years you plan to invest. Optionally add a recurring monthly contribution and choose how often interest compounds — yearly, quarterly, monthly, or daily. The tool instantly shows you the future value of your investment, total contributions, and the total interest earned.
The year-by-year growth table lets you track exactly how your wealth grows over time. This is invaluable for retirement planning, education savings, or comparing fixed deposit offers from different banks.
Frequently Asked Questions
What is compound interest?
Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods. Unlike simple interest, compound interest grows exponentially, making it one of the most powerful wealth-building concepts in finance.
How often should interest compound?
The more frequently interest compounds, the more you earn. Daily compounding yields slightly more than monthly, which yields more than yearly. Most savings accounts and fixed deposits compound monthly or quarterly.