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CPM calculator
CPM is ad cost divided by impressions, times 1000. Fill any two boxes to solve the third.
Your inputs
Fill any two boxes to solve the third. Leave the one you want blank.
$
$
Result
CPM
$5.00
This is campaign arithmetic, not a platform report.
Questions
What does CPM mean?
CPM stands for cost per mille, the price you pay for one thousand ad impressions.
What is the CPM formula?
CPM = (ad cost ÷ impressions) × 1000. Rearranged, cost = CPM × impressions ÷ 1000, and impressions = cost ÷ CPM × 1000.
Why is CPM per 1000 impressions?
The cost of a single impression is a tiny fraction of a cent, so media is priced per thousand to give a readable number that is easy to compare across buys.