Click-Through Rate

Click-through rate (CTR) measures what percentage of an ad's impressions result in a click. It shows how well your ad copy, image or video resonates with your audience.

Formula

Click-through rate = clicks ÷ impressions × 100%

Example

A Meta ad is shown 50,000 times and clicked 750 times.

CTR = 750 ÷ 50,000 × 100% = 1.5%

A second version with a different image gets 1,200 clicks with the same reach – 2.4%. It clearly resonates better with the audience.

Why click-through rate matters

CTR directly affects your costs. At the same CPM, your cost per click drops as CTR rises:

Cost per click = CPM ÷ (CTR × 1,000)

With a CPM of $12 and a CTR of 1.5%, you pay $0.80 per click; at 2.4%, only $0.50. Platforms like Google Ads also factor expected CTR into ad quality.

Click-through rate in lead generation

CTR is an early-stage metric: it tells you something about the ad, but nothing about whether clicks turn into leads and customers. An ad with a high CTR can attract curious people who never buy, while a plain ad with a low CTR brings in exactly the right prospects.

That is why you should always look at CTR alongside conversion rate, cost per lead and deals per ad. LeadMetrics syncs the daily metrics of your ads from Meta, Google Ads, TikTok and LinkedIn and attributes leads and deals from your CRM to them. In dashboards you can then see, ad by ad, whether a good CTR actually leads to revenue.

Common mistakes

• Optimizing for CTR alone: Clickbait increases clicks, not deals.
• Comparing platforms directly: Search, social and display ads have fundamentally different CTRs.
• Equating clicks with visitors: Not every click results in a loaded page view.