CPM stands for Cost Per Mille, meaning the cost for 1,000 ad impressions.
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CPM (Cost Per Mille) is a digital advertising metric that measures the cost of generating 1,000 ad impressions. The word mille means one thousand. CPM is commonly used in display advertising, video advertising, and social media campaigns, particularly when the goal is to increase brand awareness and reach.
How is CPM calculated?
Example:
Suppose a Shopify jewellery store spends ₹6,000 on an Instagram advertising campaign and receives 200,000 impressions.
The CPM is ₹30, meaning the store paid ₹30 for every 1,000 ad impressions.
Why is CPM important?
Measures advertising costs: Shows how much it costs to generate 1,000 impressions.
Supports brand awareness: Helps evaluate campaigns designed to expose a brand to audiences.
Helps compare campaigns: Allows advertisers to compare impression costs across platforms, audiences, and creatives.
Supports budget planning: Helps estimate the number of impressions a campaign budget might generate.
Guides optimization: Helps identify opportunities to improve audience selection, creative performance, and campaign efficiency.
CPM vs. CPC vs. CPA
Important: A low CPM does not automatically mean an effective campaign. Impressions do not necessarily lead to clicks, conversions, or sales. CPM should be evaluated alongside reach, frequency, engagement, and conversion metrics.
In short: CPM measures the cost of displaying an advertisement 1,000 times and is especially useful for evaluating awareness and reach-focused campaigns.