The CPM ROAS calculator on this page is designed to allow you to calculate your ecommerce ROAS from CPM based advertising platforms like Facebook, Snap, and others.
If you would like to read more about the eROAS equation you can find that on a blog post here.
Using the calculator is easy. Simply enter your metrics in for the 5 different variables and your ROAS will get spit out. You can change individual variables with the slider or by entering a new number to see the impact on ROAS.
If you have any questions about the formula and how to use it, please feel to reach out to firstname.lastname@example.org