ROI Calculator
Measure return on investment as a percentage of cost.
How to use
ROI = net profit ÷ cost × 100. Choose whether the second field is ending value or profit.
Formula
ROI% = (Gain − Cost) / Cost × 100 when using total value.
Frequently asked questions
Do you store the numbers I enter?
Calculations run in your browser. Inputs are not sent to our servers.
Are the results guaranteed accurate?
Standard formulas are used. Double-check important decisions with a professional or official source.