Remit.
Free calculator

Simple Interest Calculator

Work out the interest on a straightforward loan or deposit. Enter the principal, the rate and the time to see the interest and the total, useful for a short loan agreement or a quick estimate.

Calculator by Calculator Den.

Ready to bill for it? Create a free branded invoice with the invoice generator.

Questions, answered

What is simple interest?+

Interest calculated only on the original principal, at a fixed rate over time. It does not compound, so it is easy to work out and common on short loans.

When is simple interest used?+

Often on short-term loans and some deposits. If you are lending money on a loan agreement, this shows the interest clearly.

More free tools

Invoice generatorQuotation generatorMarkup CalculatorProfit Margin CalculatorDiscount Calculator
A team working together at a laptop

Send something your clients remember.

Create your free account and make your first document in under a minute. No card, no caps.

Get started free