eCPM Calculator

How to calculate eCPM calculator?

eCPM shows the effective cost per thousand impressions and lets publishers compare revenue across formats and channels.

Use the following formula to compute eCPM:

eCPM = (Total Ad Revenue / Number of Impressions) × 1000

Using the eCPM calculator calculator: an example

Example values: Total Ad Revenue = $500 and Impressions = 1,000,000.

Step-by-step calculation:

• Step 1: Take Total Ad Revenue: $500.
• Step 2: Divide by impressions: 500 / 1,000,000 = 0.0005.
• Step 3: Multiply by 1,000: 0.0005 × 1000 = 0.50.
• Step 4: Result — eCPM = $0.50 (cost per thousand impressions).

Frequently Asked Questions

What does eCPM represent?

eCPM represents effective revenue earned per 1,000 ad impressions and standardizes performance across different pricing models.

How is eCPM different from CPM?

CPM is a set price per thousand impressions, while eCPM is a measured revenue metric calculated from actual earnings and impressions.

Can eCPM vary by ad format or placement?

Yes. Different ad formats, placements, and traffic sources typically produce different eCPM values, so compare like-for-like when evaluating performance.