Compound Interest Calculator

Calculate how your money grows over time with compound interest and regular monthly contributions.

$
$
%
Future Value
$107,143.85
$70,000.00
Total Contributions
$37,143.85
Total Interest Earned

About The Compound Interest Calculator

Calculate how your money grows over time with compound interest and regular monthly contributions.

Unlike many free tools online, Compound Interest Calculator runs entirely inside your browser instead of uploading your numbers to a remote server. That means faster results and complete privacy, whether you're planning a budget, loan, or investment on a laptop or a phone.

How to Use

  1. Open the Compound Interest Calculator tool — no sign-up or installation required.
  2. Enter your input or upload the required file using the tool above.
  3. Review the live result as it updates instantly in your browser.
  4. Copy, download, or export your result when you're happy with it.

Frequently Asked Questions

Is Compound Interest Calculator free to use?

Yes. Compound Interest Calculator is completely free, with no sign-up, no watermark, and no usage limits.

Is my data safe when I use Compound Interest Calculator?

Yes. Compound Interest Calculator runs entirely in your browser, so your numbers stay local on your device and are never uploaded to a server.

How accurate are the results?

The calculator uses standard, widely accepted formulas. Results are estimates meant to guide your decisions and should not replace professional advice.