CALCULATORS / FREE ONLINE TOOL

Simple Interest Calculator

Calculate interest without compounding.

Free to use On-device processing No account needed
Your workspace Runs privately in your browser
Simple Interest Calculator inputs

A little guidance.

Use I = P × r × t to calculate simple interest. Enter the annual rate as a percentage and time in years. The principal stays constant and interest is not reinvested. This illustration excludes fees, taxes, and payment schedules.

How it works

  1. Enter your values, or use the example to get started.
  2. Select “Calculate” to process your input in your browser.
  3. Review the result, then copy or download it when available.

Good to know.

Is my input sent to a server?

No. This tool runs in your browser. KILIZU does not upload or store the values or files you enter here.