Calculators
CPM Calculator
Calculate CPM (cost per thousand impressions), total campaign cost or impressions. Free CPM calculator for advertisers.
Result
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How to use the CPM Calculator
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1
Choose what to work out.
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Enter the other two values.
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Read the result and the cost per impression.
About this tool
CPM is the cost of 1,000 ad impressions. Choose what you want to work out, enter the other two numbers, and compare campaigns on a like-for-like basis.
Read our guide: How Much Should You Spend on Ads per Sale? Setting a Sensible Ad Rate
Frequently asked questions
How is CPM calculated?
CPM = total cost ÷ impressions × 1,000. So £500 for 100,000 impressions is a £5 CPM.
Is a low CPM always better?
Not always. Cheap impressions that never convert cost more in the end. Compare cost per sale too.