CPM Calculator

CPM (Cost Per Mille, where mille = Latin for 1,000) is the standard pricing unit for digital advertising — it measures how much an advertiser pays for every 1,000 ad impressions served. It's the foundational metric for display advertising, video advertising (YouTube pre-rolls, streaming), social media ads, and programmatic advertising.

The CPM formula: Total Cost = (Impressions ÷ 1,000) × CPM. Rearranging: CPM = (Total Cost ÷ Impressions) × 1,000. If you paid $500 to serve 250,000 impressions, your CPM was $2.00.

Typical CPM ranges by platform and niche (2025): Facebook/Instagram display: $5–$12. Google Display Network: $2–$8. YouTube pre-roll (skippable): $6–$15. LinkedIn: $25–$50 (highest due to professional targeting). Twitter/X: $4–$8. Streaming TV (CTV): $20–$40. High-value niches (finance, insurance, legal) command 2–5× the rates of low-value niches (entertainment, general news).

CPM vs. CPC vs. CPA: CPM pays per impression (best for brand awareness). CPC (Cost Per Click) pays only when someone clicks (better for direct response). CPA (Cost Per Acquisition) pays only when a conversion happens (most efficient for measurable ROI). Smart advertisers match the pricing model to their campaign goal.

For website publishers: Google AdSense reports RPM (Revenue Per Mille) to creators — this is the effective rate you earn per 1,000 page views, which is always lower than the gross CPM because Google takes a cut and not all impressions fill with paid ads.

Viewability is an increasingly important CPM modifier. Industry standards require at least 50% of an ad to be in view for 1 continuous second (display) or 2 seconds (video) to count as a "viewable impression." Higher viewability rates command premium CPMs.