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Free tool

CPM Calculator

For awareness and reach campaigns, cost per thousand impressions is the efficiency measure that matters. This works it out.

Your numbers Any period
Total media spend for the period.
Impressions delivered in the same period.

Method: CPM = Advertising spend ÷ Impressions × 1,000

Result

Enter your numbers to see the result and what it means.

How this calculator works

Enter your advertising spend and the impressions delivered over the same period. The calculator returns what a thousand impressions cost you.

The formula

CPM = Advertising spend ÷ Impressions × 1,000. The M is the Roman numeral for a thousand, not million — a common and expensive misreading.

Questions

When the goal is being seen rather than clicked — brand campaigns, launches, or building an audience to retarget later.

CPM reflects auction competition for your audience. Narrow audiences, competitive seasons and premium placements all raise it.

Proof this works

A considered brand that still needed the advertising to pay for itself — 8x+ attributed ROAS.

If you would rather we handled it

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