What it is
Cost per thousand impressions
Cost per thousand ad impressions. In influencer marketing, it is calculated from the actual reach of a post, not the subscriber count: a channel with 200,000 subscribers may get anywhere from 30,000 to 90,000 views per post, which changes the CPM by a factor of three.
Example
What it looks like in numbers
A channel with 200,000 subscribers; the post got 46,000 views and cost $1,000. CPM = $1,000 / 46 = $21.70. Calculating from subscribers would give $5 — four times more optimistic and wrong.
Related terms
Next to it in the report
In practice
Where this shows up
Pages where CPM is not explained but used — in a channel’s mechanics, in a launch breakdown or in a report.
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