Enter the gross CPM ($/1000 impressions) and the average CPM loss into the Calculator. The calculator will evaluate the Net Cpm. 

Net Cpm Formula



  • NCPM is the Net Cpm ($/1000 impressions)
  • GCPM is the gross CPM ($/1000 impressions)
  • CPML is the average CPM loss

To calculate the Net Cpm, subtract the average CPM loss from the gross CPM.

How to Calculate Net Cpm?

The following steps outline how to calculate the Net Cpm.

  1. First, determine the gross CPM ($/1000 impressions). 
  2. Next, determine the average CPM loss. 
  3. Next, gather the formula from above = NCPM = GCPM – CPML.
  4. Finally, calculate the Net Cpm.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

gross CPM ($/1000 impressions) = 15

average CPM loss = 1.25