Click-Through Rate is the percentage of email recipients or delivered emails that generate clicks on links.
Click-Through Rate is the percentage of email recipients or delivered emails that generate clicks on links. A common calculation is: (Clicks ÷ delivered emails or impressions) × 100. In email marketing, this term gives marketers, designers, developers, and business owners a precise way to talk about work that affects visibility, user experience, measurement, and revenue. A strong understanding of Click-Through Rate prevents teams from optimizing isolated tasks without knowing what business result they are supposed to support. The concept should always be applied with context: who the audience is, what problem they have, what action matters, how success will be measured, and how the work connects to the broader customer journey.
Example of Click-Through Rate
Example: If 4,000 emails are delivered and 160 recipients click a link, the email click-through rate is 4%. The metric helps compare subject matter, offer relevance, layout, and CTA strength.
Why Click-Through Rate matters
It matters because email is one of the few channels a business can own directly. Strong email fundamentals improve trust, deliverability, segmentation, and long-term lead nurturing.
Related terms
CTR, open rate, click-to-open rate, soft bounce, CTOR, hard bounce
Frequently Asked Question
What does Click-Through Rate mean?
Click-Through Rate means the percentage of email recipients or delivered emails that generate clicks on links. It matters in email marketing because it helps teams make clearer decisions, measure the right outcomes, and connect marketing work to business goals.