Click-through rate (CTR) is the percentage of people who click a link, CTA, or ad out of everyone who saw it. The formula is CTR = (Clicks ÷ Impressions) × 100. It measures how compelling and relevant your message is, and on ad platforms, a higher CTR usually lowers your cost per click.
What Is Click-Through Rate (CTR)?
CTR tells you how often people who see something actually click it, an ad, an email link, a search result, or an on-page call to action. It's the headline engagement metric for digital marketing because it directly reflects relevance: a high CTR means your message matched what the audience wanted.
CTR Formula
CTR = (Clicks ÷ Impressions) × 100Click-through rate (%)
Worked example
A Google Ads campaign gets 10,000 impressions and 300 clicks:
CTR = (300 ÷ 10,000) × 100 = 3%Worked example
CTR Benchmarks by Channel
| Channel | Average CTR | Source |
|---|---|---|
| Search ads (Google Ads and Microsoft Ads) | 6.64% | LocaliQ, 2026 |
| Facebook ads, traffic campaigns | 1.71% | WordStream, 2025 |
| Facebook ads, leads campaigns | 2.59% | WordStream, 2025 |
| Email marketing (click rate) | 2.62% | Mailchimp, Dec 2023 data |
These are cross-industry averages, and each source measures something slightly different. The search figure comes from thousands of LocaliQ customer campaigns on Google Ads and Microsoft Ads; by industry it runs from 6.10% for business services to 12.75% for arts and entertainment. The Facebook figures come from 554 US traffic campaigns that ran between April 2024 and June 2025. Mailchimp's click rate is total clicks divided by emails delivered, for campaigns sent to at least 1,000 subscribers. Compare yourself with your own channel and industry, not with a single number.
Why CTR Matters
- Measures engagement: is your ad or content resonating?
- Lowers ad costs: expected CTR is one of the three parts of Google's Quality Score, and Google says higher-quality ads "can often lead to lower CPCs".
- Enables comparison: A/B-test ads, keywords, and subject lines on a level field.
- Signals relevance: a strong CTR means your message matches intent.
Factors That Affect CTR
| Factor | Effect |
|---|---|
| Ad/message relevance | Match to user intent drives clicks |
| Placement | Above-the-fold positions perform better |
| Design & copy | Compelling visuals and headlines lift CTR |
| Targeting | Reaching the right audience matters most |
| Device | Desktop vs mobile CTR can differ |
CTR vs Other Metrics
CTR measures clicks, not outcomes. Pair it with conversion rate (do clickers act?), cost per click (CPC), and ROAS. A high CTR with low conversion means you're attracting clicks but not the right ones.
Click-Through Rate FAQ
How do you calculate CTR?
Divide clicks by impressions and multiply by 100: CTR = (Clicks ÷ Impressions) × 100. 300 clicks on 10,000 impressions = a 3% CTR.
What is a good click-through rate?
It depends on the channel. Search ads average 6.64% across industries (LocaliQ, 2026), Facebook traffic campaigns 1.71% (WordStream, 2025), and email click rate 2.62% (Mailchimp). Anything clearly above the average for your channel and industry is good.
What's the difference between CTR and conversion rate?
CTR measures how many viewers clicked; conversion rate measures how many of those clickers then completed a desired action (purchase, signup). High CTR + low conversion means clicks aren't turning into results.
Does a higher CTR reduce ad costs?
Often, yes. Google calculates Ad Rank from your bid plus auction-time measures of quality, including expected CTR, ad relevance and landing page experience, and says that "higher quality ads can often lead to lower CPCs" (Google Ads Help). The 1-10 Quality Score you see in your account is a diagnostic summary of those signals; Google states it "is not an input in the ad auction".