Content revised 21 October 2026.
CPM means cost per thousand impressions. It measures impression-based delivery; it does not mean a thousand clicks or guarantee that people noticed or acted on the ad.
Correct the name and unit
The “M” comes from the Roman numeral for one thousand, so CPM is cost per mille. In an impression-priced arrangement, the advertiser pays according to blocks of one thousand impressions. Exact charging rules and viewability options depend on the platform or agreement.
Calculate an effective CPM
If a placement costs PKR 40,000 and records 200,000 impressions, the effective CPM is PKR 200. Keep the impression definition, reporting source and invalid-traffic treatment clear when comparing publishers or affiliate arrangements.
Decide whether the model fits
- Use impression delivery for an appropriate awareness objective.
- Check audience and placement quality, not reach alone.
- Track clicks and useful actions separately.
- Document commercial and disclosure requirements.
Avoid automatic ROI claims
Many impressions can produce little attention or business value. Compare CPM with reach, frequency, click-through data and relevant post-click outcomes. An affiliate site’s authority score does not prove that a CPM placement is suitable or will improve search rankings.
Official guidance: Google Ads CPM definition.