Business & Finance Calculators

Simple Interest Calculator

Use Simple Interest Calculator free in your browser. No account required; your input is processed locally in your browser.

Runs locallyYour inputs stay in your browser.
Workspace
Result
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HOW IT IS CALCULATED

Calculate simple interest

Interest is calculated only on the original principal for the full duration.

Instant resultClear formulaRuns locally
01Values
02principal × rate × years
03Result

10000 at 5% for 3 years → 1500 interest

GOOD TO KNOW

Simple interest does not compound

Previously earned interest does not itself generate additional interest.

02

In short

What logic does the calculator use?

principal × rate × years

Example?

10000 at 5% for 3 years → 1500 interest