Compound Interest Calculator

Calculate compound interest allowing for regular contributions.

Principal Amount

Monthly Contribution

Annual Interest Rate (%)

Time Period (Years)

Compounding Frequency

Future Value

Total Interest Earned

Total Contributions

Features

Calculate compound interest with regular monthly contributions.
Support for various compounding frequencies (Monthly, Quarterly, etc).
See breakdown of total contributions vs interest earned.

How to Use

Enter the initial principal amount.
Enter amount you plan to contribute monthly (optional).
Enter the annual expected interest rate.
Specify the time period in years and select the compounding frequency.
The future value and total interest will be calculated automatically.