The CPM Formula
CPM = (ad cost / post views) × 1,000
Always use actual recent post views — not the subscriber count. A channel with 30K subscribers but 800 views/post has an effective CPM dramatically higher than the owner will quote.
CPM Benchmarks by Niche
| Niche | CPM Range | Why |
|---|---|---|
| Entertainment / Humor | $2–5 | High reach, lower purchase intent |
| News / Politics | $3–7 | General audience, passive readers |
| Lifestyle / Travel | $4–9 | Aspirational, consumer-brand friendly |
| Business / Marketing | $5–12 | Decision-makers with higher LTV |
| Tech / SaaS | $8–18 | Tech buyers, strong conversion intent |
| Finance / Crypto | $10–25 | High-value audience, strong buying power |
The CPM Trap to Avoid
Many owners quote CPM based on subscriber count. Always demand actual post views. A 50K channel with only 2K views/post has an effective audience of 2,000 — not 50,000. The difference can be 25×.
How to Evaluate a Channel Before Buying
- Request screenshots of the last 15 post stats (or verify via Channel OS tracking)
- Calculate average views per post
- Apply CPM = (your price / average views) × 1,000
- Compare to niche benchmarks above
- Check ER — low ER means passive readers who are unlikely to click
Tracking ROI Over Time
Channel OS Ad Journal logs every placement: channel, cost, views delivered, and calculated CPM. After 10+ placements you build a personal benchmark — which channels over-deliver, which channels disappoint, and which niches give you the best ROI for your specific product.
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