Estimate gross-profit-based marketing ROI from revenue, margin and campaign cost.
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How to use Marketing ROI Calculator
- Choose a consistent period and currency.
- Enter attributed revenue, gross margin and cost.
- Review the formula and assumptions alongside your own records.
Example
Revenue 10,000, margin 50% and cost 2,000 give gross profit 5,000, net contribution 3,000 and ROI 150%.
Method and formula
Gross profit = attributed revenue × gross margin / 100. Net contribution after marketing = gross profit − marketing cost. Marketing ROI = net contribution after marketing / marketing cost × 100. All monetary inputs must use the same currency and measurement period.
Limits and supported input
Marketing cost must exceed zero, and margin is from 0 to 100%. This model excludes taxes, overhead and attribution uncertainty unless you include them in your inputs. It is an estimate, not accounting advice or a revenue forecast.
Privacy
This tool processes the input in your current browser tab. It does not upload your input or call a paid or remote API. Copying places text on your system clipboard; downloading saves a file on your device. Site hosting logs, analytics, ads, third-party embeds and other installed plugins are separate and can have their own data handling. JavaScript is required for the tool, while this explanation remains available without it.
Frequently asked questions
Is this revenue ROAS?
No. It accounts for gross margin and subtracts marketing cost; ROAS compares revenue directly to ad spend.
Can ROI be negative?
Yes, when gross profit is below marketing cost.