CPM calculator

Calculate CPM, eCPM, cost, or impressions

Cost

Impressions

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CPM

Formula

CPM = (Cost ÷ Impressions) × 1,000

Your Calculation

About this calculation

CPM measures the cost of 1,000 ad impressions.

CPM (Cost Per Mille) is a key metric in display advertising that measures how much you pay for 1,000 ad impressions. It's essential for comparing the cost-effectiveness of different advertising campaigns and channels. Lower CPM typically indicates more efficient ad spend, but should be balanced with other metrics like conversion rates.