CPM CPC CPA Calculator
Three common ad costs measure the same spend in different ways. CPM is the cost per thousand views. CPC is the cost per click. CPA is the cost per action, such as a sale or sign-up. Enter your totals and all three come out.
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How it works
CPM is the spend divided by impressions, times 1,000. CPC is the spend divided by clicks. CPA is the spend divided by the number of actions.
Use the same campaign and the same dates for every number. The ad platform counts impressions its own way, which may differ from your own tools.
Worked example
Spending $500.00 gives a cost of $5.00 per thousand views, $0.25 per click, and $12.50 for each action.
Questions
Which of the three should I watch?
It depends on the goal. Awareness campaigns often look at CPM, clicks at CPC, and sales at CPA.
Why do the platform numbers differ from mine?
Platforms count views and clicks in their own way, and some report with delays. Compare trends rather than exact matches.
Does CPA include the cost of the product?
No. It is the ad spend divided by the actions, not the profit on each one.
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