Free CPM Calculator

Find your cost per thousand impressions.

CPM is the standard metric for comparing the cost-efficiency of reach/awareness campaigns, since it normalizes cost regardless of how many impressions a campaign actually served — useful for comparing bids or channel efficiency at a glance.

Worked Example

Example: $400 spent for 80,000 impressions. CPM = ($400 / 80,000) × 1,000 = $5.00 per thousand impressions.

Formula

CPM = (Total Ad Spend / Total Impressions) × 1,000

Worked Example

Example: $400 spent for 80,000 impressions. CPM = ($400 / 80,000) × 1,000 = $5.00 per thousand impressions.

Formula

CPM = (Total Ad Spend / Total Impressions) × 1,000