An invisible value that determines the position of your PPC ad on the search results page, including whether or not it’s displayed at all. Ad Rank is primarily determined by your bid amount and the ev [..]

A value that’s used to determine your ad position, calculated using your bid amount and Quality Score (Source)

Not to be confused with Ad Position, Ad Rank

In PPC (Pay Per Click), your Ad Rank is determined by multiplying your Quality Score and bid amount, and determines the position of your ad on the Google search results page. Please see bid and Quality Score for more information.

A paid search term which refers to the position of an advertisers ad, relative to the other ads shown. An ad rank of 3 would indicate that an ad is shown in the third position on a search results page. Ad rank is determined by a combination of the advertisers keyword bid and Quality Score. Ad Template