Cost Per Impression Calculator (CPM)
Calculate cost per impression, cost per 1000 impressions, total cost, or total impressions.
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Result
CPM Calculator — Cost Per Mille, Solved Instantly
CPM (cost per mille) is the price of 1,000 ad impressions — the core unit of display advertising. Enter any two of the three values (total cost, impressions, CPM) and this free CPM calculator solves for the missing one.
Media buyers use it to compare campaign quotes, creators use it to price sponsorships, and marketers use it to sanity-check ad spend. Results appear instantly with a clear label.
Solve for any missing value
Leave the field you want empty — cost, impressions, or CPM — and the calculator fills it in from the other two.
Instant labeled results
The answer appears immediately with a label telling you exactly which value was calculated.
For buyers and sellers of ads
Whether you are buying display inventory or selling impressions on your own site, knowing your CPM keeps every deal honest.
How to use
- Enter any two values: total cost, impressions, or CPM.
- Leave the value you want to calculate empty.
- Click Calculate.
- Read the result and its label.
Frequently Asked Questions
What does CPM mean?
CPM stands for cost per mille — the cost of 1,000 ad impressions. It is the standard pricing unit for display and video advertising.
How is CPM calculated?
CPM equals total cost divided by impressions, multiplied by 1,000. This tool applies the same math automatically.
Can I calculate total cost instead of CPM?
Yes. Leave the cost field empty and enter impressions and CPM — the tool solves for cost. Any one of the three fields can be the answer.
Is the CPM calculator free?
Yes, free with no signup required.
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