Glossary
What is Target CPA in Google Ads?
Melvin Salas1 min readVerified 3 October 2026
Short answer
Target CPA is a Google Ads Smart Bidding strategy in which you set your desired average cost per conversion, and Google Ads uses that target to set a bid based on the likelihood of the ad to convert. Google says some conversions may cost more than your target and some may cost less, but altogether Google Ads will try to keep your cost per conversion equal to the Target CPA that you set.
Google says the target you set may influence the number of conversions that you get: setting a target that's too low, for example, may cause you to forgo clicks that could result in conversions, resulting in fewer total conversions. If your campaign has historical conversion data, Google Ads will recommend a Target CPA, which it describes as the average CPA from the last 30 days, adjusted for any conversion delays.
Starting in June 2026, Google is relabelling Maximise conversions with a Target CPA as Target CPA, and says the underlying bidding behaviour remains exactly the same.
Google says your bid strategy will only optimise based on the conversions that you've chosen to include in the Conversions column, and that when evaluating it you should compare your CPA achieved with the strategy's average target CPA. Our reading, not Google's: a target is a price per whatever that column counts, so the same figure means something different once a cheaper, more frequent action is counted beside a sale.
Nothing that moves money happens without evidence
At Riibon a bid or budget change starts from the platform's own forecast and the account's history, and no change that touches money goes live without a person signing it off. Every change is written down with what happened after it, so the next decision starts from the last one.
Ask the Riibon app what changed in your account before your numbers moved. It is free, with no time limit and no card. Or book a call and we run it for you.