Simple Interest Calculator

Free simple interest calculator to calculate interest and the total amount from principal, rate, and time.

A transparent estimate for interest that does not compound.

Your inputs stay on your device

Calculate simple interest

live result

Currency

Principal

Annual rate%

Years

Interest

$1,500.00

Total

$11,500.00

Currency selection changes labels only; no live rates, taxes, fees, or financial advice are included.

Context & Reference

For borrowers and savers checking non-compounding interest.

calculator guide

Multiplies principal by annual rate and years.

Use this calculator with your own values, then review the clearly labelled result and copy it when you need it elsewhere.

Interest is added once to principal for the total.

$1,000 at 5% for 2 years yields $100 interest.

This does not model compounding.

This calculator runs locally in this browser. This does not model compounding.

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