What is click-through rate (CTR)? Definition, formula and benchmarks

Click-through rate (CTR) is the percentage of people who click a link, ad or search result after seeing it, calculated as clicks divided by impressions. Google Ads and Google Search Console both use this formula, so 5 clicks from 100 impressions equal a 5% CTR. According to WordStream’s 2025 benchmarks, the average Google search ad reaches a CTR of 6.66%.

Updated: 17 October 20263 min read
Infographic: click-through rate CTR in numbers, 6.66% average search ad CTR, 34.5% and 58% CTR drop with AI Overviews
Source: WordStream 2025 Google Ads Benchmarks, Ahrefs 2025 and 2026

How do you calculate CTR?

You calculate CTR by dividing clicks by impressions and multiplying the result by 100. The formula is: CTR = (clicks ÷ impressions) × 100%. A result shown 2,000 times that earns 80 clicks has a CTR of 4%.

The definitions of the two inputs differ slightly between tools. In Google Search Console, a click is a click from Google to your site, and an impression counts each time a link to your site appears in results, including items that the user has to scroll or expand. In Google Ads, an impression is each time your ad is shown.

Types of CTR

CTR is measured in four main marketing channels, and each has its own typical range.

Organic CTR

Organic CTR shows how often searchers click your unpaid result in Google. It depends on position, title, meta description, rich results and the SERP features above you. You find it in the Search Console Performance report per query and per page.

Paid search CTR

Paid search CTR measures clicks on text ads. Google Ads uses it to estimate expected CTR, one of the components of Ad Rank, so a higher CTR helps you win better ad positions at a lower cost. This is one of the first things I check when running Google Ads campaigns.

Display and social CTR

Banner and social ads usually have much lower CTR than search ads, because users are not actively looking for a product when they see them.

Email CTR

Email CTR is the share of recipients who click a link in a message. Some tools divide by delivered emails, others by opens, so always check the denominator before comparing.

CTR benchmarks in 2025 and 2026

A good CTR depends on channel, industry and position, so compare against data from the same context.

ContextCTRSource
Google search ads, all industries6.66%WordStream, Apr 2024 to Mar 2025, 16,446 US campaigns
Google search ads, Arts and Entertainment13.10%WordStream 2025
Organic position 1, AI Overview keywords2.6%Ahrefs, March 2025, desktop
Organic position 1, informational keywords without AI Overview3.1%Ahrefs, March 2025, desktop

CTR in SEO and AI search

CTR is a key SEO metric because ranking without clicks brings no traffic. In April 2025, Ahrefs analysed 300,000 keywords and found that an AI Overview lowers the click-through rate of the top result by 34.5%. Its February 2026 update, comparing December 2025 with December 2023, measured a 58% lower average CTR for the first result when an AI Overview appears.

In my client reports I no longer judge SEO by CTR alone. When CTR drops while impressions rise, the page often still wins visibility as a cited source in AI answers, which is why I track citations next to clicks. I explain this approach in how to measure SEO results.

How to improve CTR

  • Write titles that match the search intent and include the main keyword.
  • Add structured data to earn rich results such as FAQ, product or review snippets.
  • Test meta descriptions with a clear benefit and a number.
  • Use ad assets (sitelinks, callouts) in Google Ads to take more space.

CTR vs conversion rate

CTRConversion rate
MeasuresClicks ÷ impressionsConversions ÷ visits or clicks
StageBefore the visitAfter the visit
Improved byTitles, ads, snippetsLanding page, offer, CRO

A high CTR with a low conversion rate usually means the snippet promises something the page does not deliver. Treat both as linked KPIs.

Pro tip: In Search Console, filter queries where your average position is 1 to 5 but CTR is below the site average. These pages already rank; a rewritten title and description is often the cheapest traffic gain you can get.

Frequently asked questions about CTR

What is a good CTR?

A good CTR depends on the channel and industry. WordStream's 2025 benchmarks put the average Google search ad CTR at 6.66%, while organic CTR for the top result is usually lower when an AI Overview is shown.

How is CTR calculated?

CTR equals clicks divided by impressions, multiplied by 100. For example, 50 clicks from 1,000 impressions give a 5% CTR.

Do AI Overviews reduce CTR?

Yes, AI Overviews reduce the CTR of organic results. Ahrefs measured a 34.5% drop for the top result in 2025 and a 58% lower average CTR in its 2026 update.

Is CTR a Google ranking factor?

In Google Ads, CTR feeds expected CTR, which is part of Ad Rank. For organic search, Google does not list CTR as a ranking factor in its documentation, but a low CTR still means lost traffic.

Related terms

International SEO · AI SEO (GEO)

Grow in every market, and get cited by AI

CTR is falling where AI answers sit above the results, so winning the click now also means winning the citation. I help brands improve both their organic CTR and their visibility in AI search in every market they target.

I help SaaS and e-commerce brands win organic traffic across Europe and the US, and get their brand recommended in ChatGPT, Gemini, Perplexity and Google AI Overviews. Every project starts with a free audit of your site, your markets and your visibility in AI answers.

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