Compound Interest Calculator

Calculate compound interest on your investments. See how your money grows over time with our interactive compound interest calculator and growth chart.

How to Calculate Compound Interest

  1. 1 Enter your initial investment amount
  2. 2 Set the annual interest rate
  3. 3 Choose the time period in years
  4. 4 Select compound frequency and monthly contribution
  5. 5 View future value, total interest, and growth chart

Frequently Asked Questions

Is my code or data stored anywhere?

No. All developer tools process data locally in your browser. Nothing is sent to any server or logged.

Can I use these tools offline?

Yes! After the initial page load, most developer tools work without an internet connection.

Are there API limits?

No limits. Since processing happens in your browser, you can use the tools as much as you need.

Is the output compatible with production use?

Yes. Our tools produce standard-compliant output suitable for production environments.

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Last updated: January 15, 2026 · v2.1