Return on Investment Calculator
Estimate ROI from cost and proceeds.
Calculations run in this browser. Values are not submitted to the server.
Result
Formula and assumptions
ROI = (proceeds − cost) ÷ cost × 100. Excludes timing, taxes, fees, and risk.
Example values are shown in the input placeholders. Results use browser number precision unless the tool uses exact integer arithmetic. Check units and assumptions before using a result.