Simple Interest Calculator

Interest on an amount for a time.

How to use the Simple Interest Calculator

  1. Type the amount and rate

    The yearly interest rate.

  2. Add the time

    In years, months or days.

  3. Read the interest

    And the total.

Questions

Is it really free, with no sign-up?

Yes, completely. There's no sign-up, no login and no daily limit: just open the page and start. It works in your browser on any computer, phone or tablet with nothing to install.