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Click-Through Rate (CTR): Definition & Calculation

Updated: 22 May 2026 · approx. 3 min read · Prefer farbentour.de

The click-through rate, CTR, reflects the ratio of clicks on an advertising medium to the impressions for that same advertising medium.

Click-Through Rate

The click-through rate, abbreviated CTR, reflects the ratio of clicks on an advertising medium to the impressions for that same advertising medium. In German, it is called “Klickrate.”

In online marketing, the click-through rate is an important metric for measuring the success of campaigns. Also for search engine optimization (SEO), the CTR plays an essential role. For a meaningful result, however, it is often decisive to view it in relation to the conversion rate.

Calculating the Click-Through Rate

The click-through rate is expressed as a percentage. It can be determined using the following calculation:

(Number of clicks / Number of impressions) * 100 = Click-Through Rate

If an ad is displayed 300 times within a selected period and clicked six times, the click-through rate is two percent.

What Are Good Click-Through Rates?

How high a good click-through rate is cannot be stated across the board. This is because average values depend on the medium as well as on the advertising medium. Classic advertising banners usually achieve only a very low click-through rate, sometimes below 0.1 percent.

For Meta or Facebook ads, WordStream reports an average click-through rate of around 1.5 percent (traffic campaigns) for 2024, with significant differences depending on the industry. In the Google Search Network, the average CTR is around 6.6 percent across all industries according to WordStream benchmarks 2026, while the values in the Display Network continue to be significantly lower.

From this it can be concluded: companies that want to determine and evaluate a click-through rate should first inform themselves about average values for the medium and the advertising medium in question.

For organic search, the CTR depends heavily on the position in the search results: position 1 achieves roughly 30 to 40 percent of the clicks, position 2 about 15 to 20 percent; after that, the CTR drops significantly with each further position. Reliable figures for each position are provided by continuously updated data sources such as Advanced Web Ranking or Backlinko, each with a reference date.

Where Does the CTR Appear?

As already indicated, the click-through rate plays a central role in various areas:

  • Search engine optimization (SEO): The click-through rate in the SERPs gives indications of how a snippet affects searchers. Here, the CTR can be influenced above all by editing the meta title and meta description.
  • Social media: Whether posts or ads, the click-through rate is an important metric when analyzing campaigns, especially when billing is done via cost-per-click. Above all, it provides insight into what effect the posts or ads have on your own target audience.
  • Banner advertising: The same applies to traditional banner advertising.
  • Search engine marketing: Anyone who wants to increase their reach and win more customers with Google Ads, for example, also pays attention to the click-through rate that an ad achieves.
  • Affiliate marketing: Many clicks on an ad increase the chance of many conversions and thus of a higher commission in affiliate marketing.
  • Email marketing: Here, too, the CTR is a central metric. It relates the clicks to the delivered or opened emails and thus evaluates the effect of the subject line, content, and call to action.

Important: A high click-through rate alone is not proof of a successful marketing campaign. Because a click does not equal a conversion. After all, it may be that out of 2,000 impressions, 70 people click on an ad, but only two of them buy something. That is why the click-through rate is, as a rule, viewed in relation to the conversions.

In Google Ads, the CTR directly influences the quality score: a high CTR improves the quality score, thereby lowers the cost per click (CPC), and at the same time raises the ad position. In SEA, the CTR thus acts directly as a cost lever.

Significance for SEO

A high click-through rate in the SERPs generates a lot of traffic to your own page.

Two factors play an important role here:

  1. The position: As a general rule: the higher the ranking, the better the chances of many clicks.
  2. The snippet: It is also essential whether a snippet entices users to click.

To influence the click-through rate in Google's SERPs, website owners can, on the one hand, optimize their website so that it appears as high up in the results as possible, and additionally run ads if necessary. On the other hand, it is worthwhile to edit the meta title and meta description so that both attract attention and meet the searcher's expectations. A descriptive URL has also proven to be advantageous with regard to the CTR.

Beyond the meta title, meta description, and a descriptive URL, the CTR can be increased with further measures: rich or featured snippets, structured data such as FAQ markup or star ratings, meaningful power words and numbers in the titles, as well as systematic A/B tests of different snippet variants.

CTR and Conversion Rate: The Difference

The conversion rate is clearly distinct from the CTR: while the CTR measures how many viewers click, the conversion rate captures how many of those who click subsequently perform the desired action (purchase, inquiry, sign-up).

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