Finance & Money
ROI Calculator - Return on Investment
Calculate ROI percentage and net profit for an investment or project.
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
Frequently asked questions
What does ROI mean?
ROI measures the profitability of an investment as a percentage of its cost.
Can ROI be negative?
Yes. If your return value is lower than the cost, ROI will be negative.
Is ROI the only metric to use?
ROI is a quick snapshot, but consider risk, time, and cash flow too.
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About this tool
ROI (return on investment) shows how big your gain or loss is compared to what you spent. Enter the total investment cost and the value you get back (revenue, sale price, or final value). The calculator returns ROI (%) and net profit.
Formula: ROI = (return value - investment cost) / investment cost * 100. Net profit is return value minus investment cost, so you can see the absolute result alongside the percentage.