Please help me to understand relationship between eCPM and earnings. Is there any relation ship between them? If yes, How? Thank you
Definitions: eCPM = (Earnings / Impressions) x 1000 CTR = (Clicks / Impressions) x 100 EPC = Earnings / Clicks Especially useful equations: Earnings = eCPM x Impressions / 1000 Earnings = CTR x EPC x Impressions / 100 eCPM = CTR x EPC x 10
Not true. eCPM is merely a statement of what you WOULD be earning IF you were getting paid per 1000 impressions. In most cases you are not, so the measurement is not very useful. Further, you get paid EITHER per click OR per 1000 impressions, but not both.
So, dose it mean that I will get paid more for a click of channel having higher eCPM than a click with lower eCPM (for same keyword) And it will help me if I use more channels ?
Inside AdSense (official blog): eCPM -- what exactly is that? Google AdSense Help Center: What is Effective CPM?
Do not misinterpret eCPM. It is not a revenue prediction factor. It's simply another way of showing you an average of what you've already earned. eCPM can (and usually does) change with every click. If you get one click for $0.30 and another for $0.10, the second click lowers your eCPM, but has no affect on how much you'll get for the next click, or the next.