eCPM Calculator

eCPM calculator is a free online tool that helps publishers estimate their potential earnings from online advertising.

eCPM Calculator

Calculate your effective cost per mille (eCPM) by entering your total ad revenue and impressions below.

Formula: eCPM = (Total Ad Revenue / Total Impressions) × 1000

What Is Effective Cost Per Mille (eCPM)?

eCPM measures the revenue generated for every 1,000 ad impressions displayed. It differs from CPM in that where CPM measures the cost an advertiser incurs for every 1,000 impressions, eCPM measures the revenue a publisher generates for the same number of impressions.

Publishers use eCPM as a means of enhancing ad placements, keeping an eye on ad monetization performance, and gauging the overall effectiveness of their ad monetization efforts.

It needs to be noted that eCPM only measures impressions, and not the number of times an ad was clicked. This latter metric is called click-through rate or CTR. A conversion happens once the user has transitioned down the funnel of impressions and clicks. The eCPM is thus, only the first point in this conversion funnel, and should be used in conjunction with other metrics to fully evaluate the success of an advertising campaign.