Cost Per Mille (CPM) Calculator
Enter ad spend and impressions. Get your cost per 1,000 impressions, and see what a budget buys at that rate.
How to use CPM
CPM means cost per mille, Latin for thousand. It is the price of 1,000 ad impressions. 15,000 spent on 600,000 impressions gives a CPM of 25.
CPM suits awareness campaigns on display, video and social. For lead or sales goals, a low CPM can hide poor results, so check CTR and cost per conversion too.
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Common questions
What does CPM mean?
Cost per mille, or cost per thousand impressions.
How do I calculate CPM?
Divide total spend by impressions, then multiply by 1,000.
Is a lower CPM always better?
No. A cheap impression shown to the wrong audience wastes money. Compare CPM with CTR and conversion cost.
When should I buy on CPM?
When reach and brand recall matter more than direct clicks, such as launches and video campaigns.
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