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CPM Calculator
Enter campaign cost and impressions to get your cost per thousand impressions.
CPM
—
Cost per 1,000 impressions.
| Cost per impression | — |
|---|---|
| Impressions | — |
| Impressions per $100 | — |
| Cost | — |
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Enter your figures above to see the step-by-step working.
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How the CPM Calculator Works
CPM stands for cost per mille — the cost per thousand impressions in an advertising campaign. Divide the total cost by the number of impressions and multiply by 1,000. It’s the standard way to price and compare display, video and social ad buys, because it normalises spend against reach.
A lower CPM means cheaper reach, but reach isn’t everything — a low CPM on the wrong audience wastes money. Pair CPM with click-through and conversion rates to judge whether cheap impressions actually perform.
CPM = cost ÷ impressions × 1000
Frequently Asked Questions
What is CPM?
Cost per thousand impressions. It’s how much you pay for every 1,000 times your ad is shown.
How do I calculate CPM?
Divide the campaign cost by the impressions and multiply by 1,000. $500 for 200,000 impressions is a $2.50 CPM.
What is a good CPM?
It varies widely by platform and audience — from a dollar or two for broad display to much higher for niche, high-intent audiences. Compare within the same channel.
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