How to calculate eCPM

Read the article about buying methods and payment models to better understand the difference between the often interchangeable terms eCPM and CPM.

eCPM = Cost x 1000

You could also get the eCPM based on the metrics CPC (Cost per click) and CTR (Click-through rate), which is quite useful when you're buying CPC and have an estimate of what your CTR will look like:

See also:

I also recommended using the CPM calculator to make sure you get your numbers right.