ROI = (gain − cost) ÷ cost × 100. Spend $5,000 to make $12,000 and your ROI is 140%. Enter the amount invested and the return to see ROI and net profit.
What is ROI Calculator?
ROI (return on investment) measures how much you earn relative to what you spend. In marketing it's the ultimate accountability metric — it turns 'we ran a campaign' into 'we turned $1 into $4'.
How it works
ROI = ((revenue − cost) ÷ cost) × 100. Spend $2,000 to generate $8,000 and your ROI is 300%. For marketing specifically, ROAS (return on ad spend) is a close cousin that measures revenue per ad dollar.
How to use this tool
Enter your investment (cost) and the revenue it generated. The calculator returns your ROI as a percentage. Compare campaigns, channels, and time periods to see where your money actually works.
Why it matters
ROI cuts through vanity metrics. Impressions and clicks don't pay bills — return does. Measuring ROI per channel tells you where to double down and where to cut, which is the whole job of a marketing budget.
Frequently asked questions
What is a good marketing ROI?
A common benchmark is 5:1 (500%) revenue-to-cost, with 10:1 considered excellent — but healthy ROI depends on your margins. A high-margin business can thrive on lower ROI than a thin-margin one.
What's the difference between ROI and ROAS?
ROAS measures revenue per ad dollar and ignores other costs; ROI factors in total cost including product and overhead. ROAS is a quick channel gauge; ROI is the truer profitability picture.
How do I calculate ROI over time?
Track cost and attributable revenue for the same period, then apply the formula. For longer sales cycles, factor in customer lifetime value, not just the first purchase.
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