Runs locally
Simple Interest
Interest = principal × rate × time.
Ctrl+Enter runs. Ctrl+Shift+Backspace clears.
Export and import are available after you sign in. Sign in
A straight interest amount, without compounding.
About this tool
Work out how much interest a deposit or a loan earns without compounding. Enter the principal, the annual rate in percent and the number of years.
How to use it
- 01
Enter the principal amount.
- 02
Enter the annual interest rate in percent.
- 03
Enter the number of years and read the interest.
FAQ
Frequently asked questions
What is the difference from compound interest?
Simple interest is calculated on the original amount only; compound interest is also earned on previously added interest.
Can I enter part of a year?
Yes. Enter a decimal, for example 0.5 for six months.