Simple Interest Calculator

Estimate simple interest from principal, annual rate and time in years.

Your result will appear here

Enter values and press Calculate.

How to use this calculator

Enter the values requested in the calculator form.
Press Calculate to generate the result instantly.
Compare the answer with the formula and examples below.

Examples

1000 at 5% for 3 years earns 150 in simple interest.

Frequently Asked Questions

Is this compound interest?

No. This calculator uses simple interest only.