The cost of 1,000 ad impressions.
Definition
The cost of 1,000 ad impressions.
Why it matters
It measures cost of reach.
How it works
CPM = spend ÷ impressions × 1,000
Example
₹3,000 for 1,00,000 impressions is ₹30 CPM.
Common mistake
Comparing CPMs across very different audiences.
Using it in practice
Review CPM alongside related metrics rather than in isolation, and agree definitions across your team so reports stay consistent.
Need help putting this into practice?
Gravmo's team can plan and run this for you. See Facebook and Instagram Ads or message us on WhatsApp.
Ask on WhatsAppFrequently asked questions
Is CPM the most important metric?
No single metric tells the whole story; use it with business outcomes.
How often should we review CPM?
Monthly for most businesses, weekly during active campaigns.
