Glossary > Effective CPM

Effective CPM (eCPM)

What is Effective CPM?

Definition: Effective CPM (eCPM) is the effective cost per thousand impressions. For digital ads, this means on-targeted, viewable, five-second views.

The calculation for eCPM is as follows: eCPM = CPM ÷ Viewability % ÷ On Target %