← All tools
Simple Interest Calculator
Calculate simple interest and total amount from principal, rate and time.
How to use Simple Interest Calculator
Enter your values in the fields above. Results are calculated in your browser as you type or when you select Process. Use Reset to clear the inputs and start again.
About Simple Interest Calculator
Calculate simple interest and total amount from principal, rate and time. This free browser-based tool is designed for quick, private everyday use. Your input is processed on this page.
Frequently asked questions
What does Simple Interest Calculator do?
Calculate simple interest and total amount from principal, rate and time.
Is Simple Interest Calculator private to use?
This page processes your input in your browser. Input is not sent to an external processing service.