(
Effective
Cost
Per
Mille) A calculation that enables the revenue received from different Google AdSense "channels" to be compared to each other by deriving their CPM. For tracking purposes, channels can be assigned to the pages that host the ads or to the style of ads. The eCPM is the revenue received from one impression multiplied by 1,000 (see below). See
CPM and
Google AdSense.
eCPM Formula
eCPM = total $ / number of ads X 1,000