YouTube CPM vs RPM: What’s the Difference?
CPM is what advertisers pay. RPM is what you earn. On the same video, CPM might read $12 while RPM reads $4 — and the $4 is the real number.
Creators quoting huge earnings figures are almost always quoting CPM. Understanding the gap is the difference between realistic planning and constant disappointment.
The definitions, side by side
| CPM | RPM | |
|---|---|---|
| Stands for | Cost per mille | Revenue per mille |
| Whose money | The advertiser’s cost | Your income |
| Counted per 1,000 | Ad impressions | Video views |
| YouTube’s cut taken? | No | Yes |
| Includes unmonetised views | No | Yes |
| Includes memberships, Super Chat | No | Yes |
Why RPM is always lower
Three things shrink CPM into RPM.
YouTube takes 45%. A $12 CPM leaves you $6.60 before anything else.
Not every view shows an ad. Premium subscribers see none. Some viewers use blockers. Short videos may carry no ad at all. If only 60% of your views were monetised, that $6.60 spreads across all views and becomes about $4.
RPM includes all revenue, not just ads. Channel memberships, Super Chat, and Premium watch-time revenue are folded into RPM, which pushes it back up slightly for channels that have those streams.
A worked example
A video gets 100,000 views. 60,000 of those showed an ad, at a $12 CPM.
| Step | Calculation | Result |
|---|---|---|
| Advertisers paid | 60 × $12 | $720 |
| Your 55% share | $720 × 0.55 | $396 |
| Spread across all views | $396 ÷ 100 thousands | $3.96 RPM |
The channel earned $396. Quoting the $12 CPM would suggest $1,200 — three times the truth.
To estimate your own earnings, use RPM in the YouTube money calculator, never CPM.
Where to find your real numbers
In YouTube Studio, go to Analytics, then Revenue. RPM appears at the top. Your playback-based CPM is further down under the monetisation breakdown.
Compare the two. A very large gap usually means a low monetised-playback rate — often caused by short videos with no mid-rolls, or heavy Shorts traffic diluting the average.
Which number should you care about?
| Use case | Use this number |
|---|---|
| Forecasting your income | RPM |
| Comparing months | RPM |
| Deciding if a format is worth making | RPM |
| Gauging advertiser demand for your audience | CPM |
| Negotiating a sponsorship | CPM, as a proxy for audience value |
| Telling anyone what you earn | RPM — never CPM |
Frequently asked questions
Is RPM always lower than CPM? Nearly always, because of YouTube’s 45% cut and unmonetised views. In rare cases a channel with heavy membership and Super Chat income can push RPM above CPM.
What is a good RPM? Entirely niche-dependent — $3 is solid for gaming, while $3 in finance would suggest a problem.
Why is my CPM high but my earnings low? Your monetised playback rate is probably low. Short videos, Shorts traffic, and limited-monetisation flags are the usual causes.
Does RPM include sponsorships? No. RPM covers YouTube-paid revenue only. Sponsorships, affiliate income, and your own product sales sit entirely outside it — and for many channels they are the larger number.