CPM is cost per thousand impressions, a pricing or reporting metric for ad exposure.
Example of CPM
Example: If a campaign spends $500 to generate 100,000 impressions, the CPM is $5. CPM is especially useful when comparing awareness campaigns, display campaigns, and video reach.
Why CPM matters
It matters because Reddit rewards relevance, authenticity, and community context. Brands that understand the platform’s terminology can build campaigns that feel useful to users instead of interruptive.
Related terms
Frequently Asked Question
What does CPM mean?
CPM means cost per thousand impressions, a pricing or reporting metric for ad exposure.