Advertising ROI calculator
Calculate advertising return and return on ad spend.
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Cost per mille calculator
Calculate advertising cost per 1,000 impressions.
Templates and calculations run locally in your browser. No generative AI or paid API is used. Review results before use.
Understand the calculation
CPM = ad spend ÷ impressions × 1,000.
A practical example
Spend $80 for 10,000 impressions: CPM is $8.
What this tool cannot tell you
An impression is not necessarily a unique person. Consider reach and frequency alongside CPM.
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