CPM Calculation Formula
Apply the standard cost-per-mille equation in any direction by entering two known campaign values.
Calculate cost per thousand
This version is useful as a formula reference when checking reports, worksheets, or media plans.
Symbols only; values are not converted.
Example values are prefilled—edit either available input.
i
The total amount spent or earned for the impressions in this calculation.i
The number of times the advertisement or placement was delivered.i
Cost per mille: the cost or revenue for every 1,000 impressions.How this calculation works
This version is useful as a formula reference when checking reports, worksheets, or media plans.
Example calculation
A £1,500 cost across 300,000 impressions produces a £5.00 CPM.
Change either input in the calculator to model a different campaign scenario.
Use the result correctly
- Mille means one thousand.
- Use total billable impressions.
- Keep currencies consistent when comparing results.
Frequently asked questions
What does cpm calculation formula calculate?
It calculates CPM, total cost, or impressions from any two known values. The page also explains the formula in the context of this version is useful as a formula reference when checking reports, worksheets, or media plans.
What formula does cpm calculation formula use?
CPM = (cost ÷ impressions) × 1,000; cost = CPM × impressions ÷ 1,000.
Is cpm calculation formula free to use?
Yes. The calculator runs in your browser and does not require an account.