CPM per Ad Impression

What is CPM per Ad Impression?

This metric calculates how much money you make from each ad on the page.

How to calculate CPM per Ad Impression?

($) Total Ad Spend / (#) Total Measured Ad Impressions) = ($) CPM per Ad Impression


From a publisher’s point of view, CPM is the basic currency for all of their inventory. CPM is what the publisher should optimize.


Focusing on CPM per Ad Impression alone can mask issues with audience engagement and a decline in page views. Therefore, consider tracking a set of metrics to make sure you maximize your revenue.