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eCPM Calculator

Formula

To calculate the eCPM:

$eCPM = \frac{TAS}{TMI} \times 1000$

Where:

$eCPM$ is the Effective Cost Per 1000 Impressions ($/1000 impressions)
$TAS$ is the Total Ad Spend ($)
$TMI$ is the Total Measured Impressions

What is eCPM?

eCPM, short for effective cost per mile, is a term used in digital marketing to describe the effective cost of an advertising campaign per 1000 measured impressions. It helps advertisers understand the cost efficiency of their campaigns.

The key difference between eCPM and CPM is that eCPM is the total cost per 1000 ad impressions after a campaign has been run, while CPM is the cost for every 1000th impression when starting the campaign.

Example Calculation 1

Let's assume the following values:

Total Ad Spend ( $TAS$ ) = $5000
Total Measured Impressions ( $TMI$ ) = 1,000,000

Using the formula:

$eCPM = \frac{5000}{1000000} \times 1000 = 5 \text{ dollars per 1000 impressions}$

The eCPM is $5 per 1000 impressions.

Example Calculation 2

Let's assume the following values:

Total Ad Spend ( $TAS$ ) = $2000
Total Measured Impressions ( $TMI$ ) = 500,000

Using the formula:

$eCPM = \frac{2000}{500000} \times 1000 = 4 \text{ dollars per 1000 impressions}$

The eCPM is $4 per 1000 impressions.