Compound Interest Calculator (Future Value)
Estimate compound interest and future value with different compounding frequencies and contributions.
Calculator
How it works
Enter the principal, interest rate, time in years, and compounding frequency, then click calculate. The tool uses the compound interest formula to estimate interest earned and total amount. Results are estimates for informational purposes only.
FAQ
How is compound interest calculated?
Compound interest adds interest on both the principal and accumulated interest, which grows faster than simple interest.
What compounding frequency should I choose?
Use the frequency shown by your lender or institution. More frequent compounding yields a slightly higher total.
How do regular contributions affect growth?
Regular contributions increase the principal over time, which can significantly raise the future value.
Is APY the same as APR?
APY reflects compounding, while APR is the nominal rate. Use the rate that matches your product terms.
Is this calculator free to use?
Yes. This compound interest calculator is free to use and does not require an account.