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CPM → RPM Decoder
Advertisers pay CPM. You receive RPM. This tool explains where the difference went.
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Fill the panel and hit run. Everything computes in your browser — nothing is uploaded, nothing is stored.
The CPM → RPM gap
Not every view gets an ad (ad blockers, unsuitable content, short watch time), and the platform takes its cut — YouTube keeps 45% of long-form ad revenue. A $10 CPM with 60% monetisation at a 55% share lands as a $3.30 RPM in your pocket.
Raise RPM without more views
Longer videos (8+ minutes) allow mid-roll ads, advertiser-friendly topics keep monetisation percentage high, and Tier-1 audience content multiplies the base CPM itself.