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
Your result
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
- Enter your values, or use the example to get started.
- Select “Calculate” to process your input in your browser.
- 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.