The Two RPMs That Matter When analyzing ad performance, publishers often come across two similar-sounding metrics: Page RPM and Impression RPM. While they may look interchangeable, these numbers tell very different stories about your monetization efficiency. Understanding the difference is crucial to avoid misinterpretation—and to optimize the right parts of your revenue funnel. What Is Page RPM? Page RPM (Revenue per Mille) measures how much revenue you earn for every 1,000 pageviews on your site. It considers all the ads displayed across that single page. Here’s the formula: Page RPM = (Total Revenue / Total Pageviews) × 1000 This metric helps you gauge how much money you make from each page your visitors load, regardless of how many ads they actually see or click. What Is Impression RPM? Impression RPM, sometimes called eCPM (Effective Cost per Mille), looks at earnings from every 1,000 ad impressions, not pageviews. Impression RPM = (Total Revenue / Total Ad Impress...
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