Measure return on investment
ROI shows how much profit you earned relative to what you spent. Use it for ads, projects, products, or any investment where you know cost and return.
Calculator
Measure return on investment from cost and revenue — get ROI %, net profit, return multiple, and profit margin in one step.
Interactive area
Enter investment with revenue or profit, choose a currency, then press Calculate for your ROI breakdown.
Finance calculator
ROI formula
ROI% = ((Revenue − Cost) ÷ Cost) × 100
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ROI shows how much profit you earned relative to what you spent. Use it for ads, projects, products, or any investment where you know cost and return.
Enter investment plus total revenue, or investment plus net profit/gain (losses allowed as negatives). Both modes produce ROI %, net profit, and return multiple.
ROI% = ((Revenue − Cost) ÷ Cost) × 100. A 50% ROI means you earned $0.50 of profit for every $1 invested.
Display results in USD, EUR, GBP, INR, AUD, or CAD. Choose the currency that matches your books or ad account.
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An ROI calculator computes return on investment from your cost and revenue (or profit). It reports ROI percentage, net profit, return multiple, and profit margin.
Subtract investment from revenue to get net profit, then divide by investment and multiply by 100: ROI% = ((Revenue − Cost) ÷ Cost) × 100. Example: $1,000 spent and $1,500 returned is a 50% ROI.
It depends on risk, time horizon, and industry. Marketing campaigns often target positive ROI after all costs; investors may compare ROI against benchmarks or opportunity cost. Use the figure as a decision input, not a universal grade.
No. ROI uses profit relative to cost. ROAS (return on ad spend) is usually revenue ÷ ad spend and does not subtract cost first. A 3× ROAS is not the same as a 200% ROI unless definitions match.
Yes. In profit mode, enter a negative net profit. In revenue mode, enter revenue lower than investment. ROI will be negative.
Return multiple is Revenue ÷ Investment. A 1.5× multiple means you got $1.50 back for every $1 invested (before calling out profit separately).
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