How to use this cpm calculator
Enter the values requested above and select Calculate. Change any input to compare another scenario. The calculation runs locally in your browser and does not require an account.
Formula and method
Example
A $500 campaign with 200,000 impressions has a $2.50 CPM.
Tips for a useful result
CPM measures exposure cost, not clicks or conversions.
What this calculator is useful for
Calculate cost per thousand impressions (CPM) from ad spend and impressions. The result is intended for quick estimates, checking arithmetic and comparing scenarios. When a result affects a contract, tax filing, medical decision, building-code requirement or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
Frequently asked questions
What does the CPM Calculator calculate?
Calculate cost per thousand impressions (CPM) from ad spend and impressions.
How does the CPM Calculator work?
CPM = spend ÷ impressions × 1,000.
Is the CPM Calculator free to use?
Yes. ERICH Calculators is free to use and does not require an account.