CPM calculator
Cost per thousand impressions from spend and impressions, or spend and impressions from a CPM. Runs in your browser; nothing you type is sent anywhere.
Formula
CPM equals cost divided by impressions, multiplied by 1,000. A $5,000 campaign that served 400,000 impressions has a $12.50 CPM. To go the other way, impressions equal spend divided by CPM times 1,000, and spend equals impressions divided by 1,000 times CPM.
Use effective CPM to compare buys priced on clicks, views, or flat fees: divide the total cost by the impressions actually delivered. Compare CPMs only within a channel and format, since a $3 display CPM and a $30 CTV CPM buy different things.
Typical ranges are on the benchmarks pages; definitions in the glossary.