Free Calculator Tool · No Signup · Works Instantly

Compound Interest Calculator — Free Online Compound Interest Calculator

Compound Interest Calculator

Calculate investment growth over time

1 year50 years

Regular Contributions

Note: Regular contributions can significantly boost your investment growth through the power of compounding.

Understanding Compound Interest:

  • Compound interest means earning interest on both your principal and previously earned interest
  • The frequency of compounding affects your returns — more frequent compounding yields higher returns
  • Regular contributions significantly accelerate wealth building
  • Time is your greatest ally — starting early makes a huge difference
  • This calculator assumes interest is compounded at the selected frequency

How to Use This Free Compound Interest Calculator

Our free online compound interest calculator is designed for speed and simplicity. Calculate compound interest and see your investment grow over time. No software installation or account is required — just use the tool above and get results instantly.

All processing runs entirely in your browser. Your data is never sent to or stored on our servers. This tool is part of our free online tools directory — 60+ tools covering calculators, converters, generators, and social media utilities.