1. Attribute
Use only revenue reasonably connected with the selected campaign or period.
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Free tool · marketing ROI calculator
Calculate what your marketing produced — and what to do next.
Enter your marketing spend, leads, customers, and attributed revenue. The calculator shows ROI, ROAS, cost per lead, acquisition cost, and break-even revenue. Treat attribution as an estimate: the result supports a decision, it does not prove that one channel caused every sale.
Updated July 28, 2026
Free tool · marketing ROI calculator
Five useful numbers, with the formulas visible
The calculator separates revenue, gross profit, and spend so a strong ROAS is not mistaken for profit. It also shows missing-data warnings instead of inventing precision.
2. Calculate
Review ROI, ROAS, cost per lead, acquisition cost, and break-even revenue together.
3. Decide
Keep, adjust, or stop the action using business signals—not impressions alone.
Questions the result helps answer
Efficiency
How much attributed revenue came back for each euro or dollar spent?
Acquisition
What did each lead and new customer cost?
Next test
Which number needs to improve before increasing the budget?
Frequently asked questions
Is the tool really free and available without an account?
Yes. Calculation or generation is immediate, with no account and no email address.
Does AdSpark receive what I enter?
No. Values entered stay in your browser. AdSpark records only an anonymous usage event with the tool name and language, never your amounts or text.
Is marketing ROI the same as ROAS?
No. ROAS divides attributed revenue by advertising or marketing spend. ROI uses profit after marketing cost. A campaign can have positive ROAS and still produce a negative ROI when margins are low.
Does the tool publish automatically?
No. It prepares a structure for you to review, complete with verified facts, and publish yourself.