COST PER THOUSAND (CPM)

Summary

Cost Per Thousand (CPM) is a fundamental advertising pricing model where advertisers pay a fixed rate for every 1,000 times their ad is displayed to users, regardless of whether anyone clicks on it. The 'M' comes from the Roman numeral for 1,000. CPM is particularly useful for brand awareness campaigns where the goal is maximum visibility rather than immediate action. It helps advertisers budget predictably and compare costs across different platforms and ad placements.

Usage Context

Essential when learning digital advertising fundamentals, media planning and buying, campaign budgeting, and comparing advertising effectiveness across different channels and platforms.

Common Confusions

• Thinking CPM guarantees clicks or conversions - it only measures impressions
• Confusing impressions with reach - CPM counts total displays, not unique viewers
• Believing lower CPM is always better without considering ad quality or targeting
• Not understanding that CPM is best for awareness, not direct response campaigns
• Mixing up CPM with CPC when comparing advertising costs