eCPM is an acronym that stands for effective cost per mille. This figure is the result of a calculation of the ad revenue that’s been provided either by an ad campaign or an ad banner, which is divided by that campaign’s or banner’s number of ad impressions, all expressed in units of 1000. Hence, “per mille.” This may sound confusing at first, but it’s an ad concept that only gets easier to understand as you become familiar with it. It’s very important since it helps advertisers get a handle on how much they are making and how popular their ad campaigns are.

## Using eCPM for a CPC Campaign

To calculate the eCPM for a CPC ad campaign, you need to work from this following calculation. First, obtain the quantity of ad impressions over a specific period of time. Then, figure out the number of clicks on the ads across the same length of time. Lastly, you must determine the CPC rate of the campaign. To get the total revenue, just multiply the click number by your CPC rate. Next, divide the number of impressions by 1000, which provides you with the quantity of blocks per 1000 impressions offered. Finally, divide your total revenue by the quantity of blocks of 1000 impressions. This gives you the eCPM value.

## Using eCPM for a CPA Campaign

To calculate the eCPM for a CPA ad campaign, you’ll start by figuring out the ad impressions number across a specific period of time. Then, determine the number of leads or sales over the same length of time. Lastly, you’ll have to figure out the CPA rate of the ad campaign.

Now, you should multiply the quantity of conversions by the CPA rate to determine your total revenue. Next, divide the quantity of impressions by 1000, which provides you with the quantity of blocks of 1000 impressions offered. Lastly, find the quotient of your total revenue and the quantity of blocks of 1000 impressions to figure out the eCPM value.

## Avoiding Confusion Between eCPM and eRPM

Only the context is different between the acronyms eCPM and eRPM, but otherwise, they really mean the exact same thing. Advertisers generally look at the invoice’s total amount as a cost, making them analyze in terms of eCPM. However, for an ad publisher providing the invoice, the same amount’s a source of either revenue or income. Thus, the ad publisher could theoretically also analyze things in terms of eRPM.

eCPM is a very important stat for ad publishers. Without it, they would have absolutely no gauge of how effective their ads were. There are two main ways of calculating this eCPM, as outlined above: figuring out eCPM for a CPC ad campaign and determining eCPM for a CPA ad campaign. Even though two different acronyms are used in the different calculations, they are almost the same in terms of how they are determined. At the end of the day, eCPM has become a big term in the ad industry.