Precise definitions, why ad blockers and geography shrink RPM below CPM, and how to track your own RPM in YouTube Studio.
CPM and RPM get used interchangeably in casual conversation, but they measure different things — and the gap between them explains most of the "why is my payout so much lower than the CPM I read about" confusion.
CPM (cost per mille) is what an advertiser pays per 1,000 ad impressions — it's an advertiser-side number. RPM (revenue per mille) is what you actually earn per 1,000 video views, after the platform's revenue share and after accounting for the fact that not every view carries a monetized ad impression. RPM is always the more relevant number for a creator's actual payout.
Several factors compress RPM well below headline CPM figures: ad blockers reduce the share of views that generate an ad impression at all, viewer geography affects ad rates significantly (advertisers pay different rates in different markets), and the platform takes a revenue share before you're paid. All of this happens before you ever see a number.
Say a video gets 10,000 views. If only 60% of those views serve a monetized ad (the rest blocked, skipped, or otherwise not monetized), and the platform's revenue share leaves you with a portion of what advertisers actually paid — the RPM you see could easily land at a fraction of the CPM figure you might have read for that niche elsewhere. This is a mechanical illustration of the gap, not a real market figure — see our CPM by niche article for actual sourced, dated ranges once published.
YouTube Studio's Analytics tab, under the Revenue section, shows your actual RPM directly — this is the number worth tracking for your own channel, rather than relying on third-party CPM estimates from other creators or tools.
Can RPM exceed CPM?
Not typically for a single creator — RPM is derived from CPM after the platform's share and non-monetized views are accounted for, so it's mechanically always lower than the underlying CPM advertisers paid.
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