Revenue Per Mille (RPM) Explained: The Creator's True Earnings Metric
Revenue Per Mille (RPM) is the amount of money a YouTube creator earns per 1,000 video views after YouTube takes its 45% revenue share. It is the most accurate metric for evaluating channel monetization performance because it accounts for all revenue sources (display ads, overlay ads, skippable video ads, non-skippable ads, bumper ads, and YouTube Premium revenue) across all views, including those that were not monetized. The formula is: $$\text{RPM} = \frac{\text{Estimated Total Earnings}}{\text{Total Views}} \times 1000$$
RPM differs fundamentally from CPM (Cost Per Mille), which measures what advertisers pay per 1,000 ad impressions rather than per 1,000 video views. Since not every video view generates an ad impression (due to ad blockers, non-monetized content, viewer geography, and ad inventory availability), RPM is always lower than CPM. A channel with a $15 CPM but only 60% ad impression fill rate effectively earns an RPM of approximately $9. Understanding this distinction prevents creators from overestimating their revenue potential based on advertiser-side CPM data.
Effective CPM (eCPM) adds another layer by normalizing revenue across different ad formats and pricing models. Some ads pay per impression (CPM), others per click (CPC), and others per completed view (CPV). eCPM converts all these payment models into a standardized per-thousand-impressions metric, allowing creators to compare the monetization efficiency of different ad formats within their content.