Metrics
CPC (Cost Per Click)
The average amount you pay each time someone clicks your ad.
CPC = total cost ÷ clicks. It is driven by auction competition, your Quality Score, ad rank and the bids of other advertisers.
Lowering CPC is not automatically good — a cheap click that never converts is worse than an expensive one that does. Look at CPC alongside conversion rate and CPA.
MyAd flags keywords and placements where CPC is rising without a corresponding lift in conversion value.