What is CPM (Cost Per Mille)?
Definition
The cost an advertiser pays per 1,000 ad impressions. CPM is commonly used for brand-awareness campaigns where the goal is exposure rather than immediate clicks or conversions.
Related Terms
The price an advertiser pays for each click on a paid ad. CPC varies widely by industry, keyword competitiveness, and platform. Tracking CPC alongside conversion rate reveals the true cost of acquiring each lead.
An advertising model where the advertiser pays a fee each time someone clicks their ad. Google Ads and Meta Ads are the two largest PPC platforms, and campaign success is measured by CPC, CTR, and ROAS.
The percentage of people who click on a link, ad, or CTA relative to the total number who see it. A higher CTR typically indicates stronger ad creative, more relevant targeting, or better meta titles in organic search.