Glossary · Metrics
eCPM— what it means in affiliate marketing
Effective cost per thousand impressions: actual revenue or spend normalised to a thousand impressions.
The common unit for comparing deals priced differently — a CPA offer and a CPC placement both convert into eCPM. Publishers use it to rank demand sources, buyers to compare inventory.
Related terms
| Term | Definition |
|---|---|
| CPM | Cost per mille: the price of a thousand ad impressions, regardless of what anyone does with them. |
| RPM | Revenue per thousand impressions or pageviews — the publisher's side of eCPM. |
Entry updated 15 September 2026. All 276 terms in one page.
