What is Retargeting Rate?
Retargeting Rate is the percentage of people who saw or clicked an initial ad and then converted after being shown a follow-up retargeting ad. It measures how effectively a brand re-engages people who showed interest but didn't convert the first time.
TL;DR
Retargeting Rate measures how well follow-up ads convert people who already showed interest but didn't buy the first time. It's usually much higher than cold-audience conversion rate, since intent is already established.
Formula
Retargeting Rate = (Conversions Attributed to Retargeting Ads / Total Users Served a Retargeting Ad) × 100
Why It Matters
Retargeting rate shows whether the budget spent re-engaging warm prospects is actually recovering lost sales, or just repeatedly showing ads to people who were never going to convert. Because the retargeting audience has already demonstrated intent by visiting a product page or clicking an earlier ad, this rate is expected to run well above cold prospecting conversion rates, and judging it against a top-of-funnel benchmark would make it look artificially strong or hide real underperformance. Tracking it helps a team decide how much budget to allocate toward retargeting versus new-audience acquisition, since a strong retargeting rate justifies expanding the retargeting pool, while a weak one suggests the ad creative or offer isn't closing the gap for people who hesitated. It also interacts closely with frequency, since showing the same retargeting ad too many times to someone who isn't converting wastes spend that could go toward reaching new warm prospects instead.
Example
A campaign serves retargeting ads to 20,000 people who previously visited a product page without buying, and 800 of them go on to convert. Retargeting rate is 800 divided by 20,000, times 100, which equals 4%. Retargeting rate is typically several times higher than a cold prospecting campaign's conversion rate, since the audience has already shown intent, which is why retargeting budgets are usually judged against a different, higher benchmark than top-of-funnel campaigns.
Frequently Asked Questions