CTR Formula: How to Calculate with Examples

What is CTR

CTR (Click-Through Rate) measures the percentage of people who click on a link out of the total number of people who have seen it. It is one of the fundamental metrics in digital marketing because it connects visibility with action: being seen is not enough, you need people to click.

CTR is used across virtually every digital channel: search ads, display, social media, email marketing, and organic results. Each channel has its own benchmarks, but the formula is always the same.

The CTR formula

Basic formula

CTR = (Clicks / Impressions) x 100

The result is expressed as a percentage. If an ad receives 50 clicks from 2,000 impressions:

CTR = (50 / 2,000) x 100 = 2.5%

Examples by channel

Google Ads (search): your ad appears 10,000 times in search results and receives 350 clicks. CTR = (350 / 10,000) x 100 = 3.5%.

Meta Ads: your Instagram feed ad is shown 50,000 times and receives 450 clicks. CTR = (450 / 50,000) x 100 = 0.9%.

Email marketing: you send a newsletter to 5,000 subscribers and 600 click on a link. CTR = (600 / 5,000) x 100 = 12%.

Organic SEO: your page appears 8,000 times in Google results and receives 400 clicks. CTR = (400 / 8,000) x 100 = 5%.

CTR benchmarks by channel and industry

CTR varies enormously depending on the channel, industry, and position. These are the reference ranges updated for 2026.

Channel	Average CTR	Typical range
Google Ads (search)	3.2%	2-6%
Google Ads (display)	0.4%	0.1-0.8%
Meta Ads (Facebook/Instagram)	0.9%	0.5-1.5%
LinkedIn Ads	0.5%	0.3-0.8%
Email marketing (B2B)	2.8%	1.5-5%
Email marketing (ecommerce)	1.5%	0.8-3%
Organic SEO (position 1)	28-32%	25-35%
Organic SEO (position 5)	5-7%	4-9%

CTR by industry in Google Ads

Industry	Average search CTR	Average display CTR
Ecommerce / retail	2.7%	0.5%
Technology / SaaS	2.4%	0.4%
Finance	2.9%	0.3%
Healthcare	3.3%	0.6%
Travel	4.7%	0.5%
Education	3.8%	0.5%

If your CTR is below your industry average, there is room for improvement. If it is above, the next step is making sure those clicks actually convert.

How to improve your CTR

In search ads

Include the keyword in the headline: users look for exact matches with their query.
Use numbers and specific data: "Increase your conversion by 34%" works better than "improve your conversion".
Add ad extensions: sitelinks, callouts, and structured snippets increase the ad's surface area.
Test different CTAs: "Request your free analysis" may work better than "Learn more".

In email marketing

Subject lines with urgency or curiosity: the subject line determines whether they open the email. No open means no click.
One clear CTA: each email should have one primary objective. Too many links dilute clicks.
Segment your list: relevant content for the recipient generates more clicks than a generic send.
Coherent preheader: the preview text complements the subject line and can increase opens by 10-15%.

In organic results

SEO titles with a hook: use the primary keyword at the start and add a concrete benefit.
Persuasive meta descriptions: although they do not affect rankings, they do affect CTR.
Structured data: review stars, prices, and FAQ in results increase visible surface area.

High CTR does not mean high conversion

This is one of the most common mistakes. A high CTR indicates that your message is attractive, but it does not guarantee that users will convert once they reach your page.

An ad with an aggressive headline can generate an 8% CTR, but if the landing page does not deliver on the promise, the conversion rate will be low and cost per acquisition will spike.

The correct sequence is:

Adequate CTR (the message attracts the right audience).
Coherent page experience (the landing page delivers on the promise).
Optimised conversion (the form, product page, or checkout facilitates action).

CTR is the first part of the funnel. If you want to optimise the entire funnel, you need a CRO strategy that connects each stage. You can explore the metrics that matter in our marketing KPIs guide.

Common mistakes when measuring CTR

Comparing CTR across different channels: a 0.5% CTR in display is good; a 0.5% CTR in search is a problem.
Ignoring volume: a 15% CTR on 100 impressions is not statistically significant.
Optimising only for CTR: if you increase CTR but traffic quality drops, the end result is worse.
Not segmenting by device: mobile and desktop CTR can be very different. Analyse both separately.

To understand how CTR fits alongside other financial metrics like payback, check our guide to the payback formula.

Conclusion

The CTR formula is simple: clicks divided by impressions, multiplied by one hundred. Its interpretation requires context: which channel, which industry, which position. A "good" CTR always depends on these factors.

The most important thing to remember is that CTR is a means, not an end. The ultimate goal is conversion. A high CTR with a poor post-click experience only generates cost without return.

If you want to improve not just your CTR but your entire conversion funnel, learn about our CRO service or request a free diagnosis with Scan&Boost.

--- Adrià Vidal, Boost