YTCPM guide · Updated
YouTube CPM vs RPM: Meaning and Formulas
Understand advertiser CPM, playback-based CPM and creator RPM with a worked example. Learn why total video views and ad impressions are not interchangeable.
Quick answer
CPM measures advertiser cost per 1,000 ad impressions before revenue sharing. Playback-based CPM uses monetized playbacks instead of ad impressions. RPM measures creator revenue per 1,000 views; for Shorts, use the engaged-view basis described by YouTube. These metrics answer different questions.
CPM, playback-based CPM and RPM at a glance
| Metric | Numerator | Denominator | Revenue-share basis |
|---|---|---|---|
| CPM | Gross ad revenue / advertiser spend | Ad impressions | Before sharing |
| Playback-based CPM | Gross ad revenue / advertiser spend | Monetized playbacks | Before sharing |
| RPM | Creator revenue in the report | All video views; engaged views for Shorts RPM | After sharing |
Each ratio is multiplied by 1,000. Source: YouTube ad revenue analytics.
CPM: advertiser cost, not creator take-home pay
CPM stands for cost per mille, or cost per thousand. Calculate it as gross ad revenue or advertiser spend divided by ad impressions, multiplied by 1,000. Use matching reports, currency and date ranges. Creator net revenue is not a valid substitute for gross advertiser revenue.
A video playback can contain more than one ad impression, while another playback might show no ad. That is why multiplying total views by impression CPM does not directly calculate creator earnings.
RPM: creator revenue per thousand views
RPM stands for revenue per mille. Calculate it as creator revenue divided by the corresponding view count, multiplied by 1,000. YouTube Studio RPM can include ads, YouTube Premium, memberships, Super Chat and Super Stickers. Our homepage forecasts advertising only; it does not reproduce all Studio revenue sources.
For long-form videos, use total video views. For a Shorts comparison, use the appropriate engaged-view count, matching the revenue scope and period. Do not subtract YouTube's revenue share again from an RPM that is already based on creator revenue.
One example, three different metrics
Suppose a report has $100 gross ad revenue, 10,000 ad impressions, 8,000 monetized playbacks and 20,000 total video views. Impression CPM is $100 ÷ 10,000 × 1,000 = $10. Playback-based CPM is $100 ÷ 8,000 × 1,000 = $12.50.
If creator ad revenue in that same example is $55, ad-only RPM is $55 ÷ 20,000 × 1,000 = $2.75. All three results can describe the same activity. The inputs are illustrative, not a benchmark or an expected payout.
Why CPM × 55% is not a universal RPM conversion
The simple conversion ignores non-monetized views, multiple ads per playback, different reporting denominators and non-ad revenue. A simplified long-form scenario can multiply CPM by assumed ad impressions per total view and an applicable creator share; it must state those assumptions.
Shorts use a different revenue-sharing model. Do not apply a Watch Page ad split mechanically to a Shorts estimate. When you already know your actual RPM, forecasting with views × RPM ÷ 1,000 avoids adding a second revenue-share deduction.
Sources and scope
Content updated . Official documentation supports metric definitions and access rules, not our country or niche benchmark values.
- YouTube Help: Understand ad revenue analytics
CPM, playback-based CPM, RPM, ad impressions and monetized playbacks; Shorts RPM uses engaged views.
- YouTube Analytics API: Metrics
Gross versus estimated creator revenue and advertising metric definitions.
- YouTube Help: Partner earnings overview
Watch Page and Shorts revenue-sharing rules. Different formats have different models.