Compound Interest Calculator
See how savings or investments grow over time with compound interest and regular contributions.
Advertisement
—
Future value
—
Total contributed
—
Interest earned
How to use
- Enter your starting balance and optional regular contribution.
- Set the annual interest rate, how often it compounds, and the number of years.
- Read the projected future value and the total interest earned.
Frequently asked questions
What is compound interest?
Compound interest is interest earned on both your original balance and the interest already added, so growth accelerates over time.
How does compounding frequency matter?
More frequent compounding (monthly vs. yearly) produces slightly more growth because interest is added — and starts earning — sooner.
🔒 This tool runs entirely in your browser. Nothing you enter is uploaded, logged, or stored.
Related tools
Advertisement