CPM = (Total Cost ÷ Total Impressions) × 1,000
Divide the total cost by the total number of impressions
Multiply the result by 1,000
Example: if cost is $500 and impressions are 200,000
CPM = ($500 ÷ 200,000) × 1,000
CPM = $2.50
CPM = (Total Cost ÷ Total Impressions) × 1,000
Divide the total cost by the total number of impressions
Multiply the result by 1,000
Example: if cost is $500 and impressions are 200,000
CPM = ($500 ÷ 200,000) × 1,000
CPM = $2.50