eCPM Calculator

Calculate effective Cost Per Mille (eCPM) - a key metric for publishers to measure ad revenue efficiency across different ad networks.

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Total revenue earned from ads

Number of ad impressions served

Formula

eCPM = (Total Revenue / Total Impressions) × 1000

Where:

eCPM= Effective Cost Per Mille
Total Revenue= Revenue earned from ads
Total Impressions= Number of ad impressions

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RPM Calculator

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CPC Calculator

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Understanding eCPM

eCPM (Effective Cost Per Mille) is a critical metric for publishers to measure the revenue efficiency of their ad inventory. Unlike CPM which advertisers pay, eCPM shows how much revenue you actually earn per 1,000 impressions.

Why Publishers Use eCPM

  • Compare performance across different ad networks (Google AdSense, Mediavine, etc.)
  • Identify which ad placements generate the most revenue
  • Optimize ad strategy by focusing on high-eCPM sources
  • Standardize comparison even when using different pricing models (CPC, CPM, CPA)

Publisher Tip: Track eCPM daily to identify trends and optimize ad placement strategies. A 10% improvement in eCPM can significantly impact monthly revenue.