Simple Interest Calculator

Your details

Forward computes interest from principal, rate and time. The other modes reverse-solve a missing value.
The starting amount borrowed or deposited.
%
How the term is expressed. Everything is converted to years before the formula is applied.
Express the total interest as an effective amount per month over the term.
Currency
Interest
$150.00
Final balance$1,150.00

You earn 150 in interest.

  • Simple interest is charged only on the original principal, so it grows in a straight line.
  • Compound interest, by contrast, earns interest on prior interest, and pulls ahead over long periods.
  • Most savings accounts and many investments compound; simple interest is common for short-term and some auto loans.

Next stepCompare this with the compound interest calculator to see how much compounding adds.

 = Powered by OnlyCalculators