Simple Interest Calculator

Calculate simple interest.

  • 100% free
  • Private in browser
  • No signup
  • No watermarks

Result

Interest: 3,750

Total: 13,750

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About Simple Interest Calculator

Simple Interest Calculator helps you enter principal amount instantly in your browser. Nothing is uploaded.

How to use Simple Interest Calculator

  1. Enter principal amount.
  2. Enter yearly rate and duration.
  3. See interest earned and total.

Key features

  • Flat (simple) interest
  • Interest + total breakdown
  • Rounded to 2 decimals
  • No login needed

Frequently asked questions

What formula is used?
Simple interest = (principal × rate × years) / 100.