What is RPM? Revenue Per Mille Explained
RPM stands for Revenue Per Mille - "mille" being the Latin word for one thousand. It is the single most useful metric for any ad-supported website owner to understand.
RPM - What You Actually Earn
RPM tells you how much money you earn for every 1,000 visitors or pageviews your site receives. If your RPM is $10 and you have 50,000 monthly visitors, you can expect to earn roughly $500 per month. The formula is:
RPM vs CPM - What is the Difference?
CPM (Cost Per Mille) is the price an advertiser pays per 1,000 ad impressions - it is the buying side of the equation. RPM is what a publisher (you) actually receives per 1,000 visitors, after the ad network takes its revenue share. That cut typically ranges from 20% to 45% depending on the platform. Think of CPM as the sticker price and RPM as what lands in your pocket after the middleman takes their fee.