CPM Calculator
CPM is a common way to express media cost per 1,000 impressions. This calculator also solves the same equation for cost or impressions.
How it works
CPM = cost / impressions x 1,000. Cost = CPM x impressions / 1,000. Impressions = cost / CPM x 1,000.
- Cost and CPM use the selected display currency.
- Impressions must be greater than zero when calculating CPM.
- This arithmetic does not assess campaign quality, reach duplication, clicks, or conversions.
Example
A campaign costing $500 for 100,000 impressions has a CPM of $5.
Common questions
What does CPM mean?
CPM means cost per mille: the cost for each 1,000 recorded impressions.
Is a lower CPM always better?
Not necessarily. Audience fit, attention, placement quality, frequency, and business outcomes also matter.