Marketing calculators
CPM Calculator
Calculate campaign cost for every one thousand impressions. Your inputs stay in this browser.
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What this calculator measures
CPM normalizes campaign cost to one thousand recorded impressions, making differently sized awareness buys easier to compare.
Formula
CPM = Campaign Cost / Impressions x 1,000
Worked example
- 1A $500 campaign delivers 100,000 impressions.
- 2$500 / 100,000 x 1,000 = $5 CPM.
How to interpret the result
Compare like placements and audiences; low CPM alone says nothing about attention, clicks, or sales.
Common mistakes and limits
- Entering reach instead of impressions, mixing currencies, or comparing viewable and served impressions.
Frequently asked questions
Why multiply by 1,000?
CPM is conventionally priced per thousand impressions.
Is lower CPM better?
Only when audience and impression quality are comparable.
Does CPM measure clicks?
No. Use CTR or CPC for click behavior.