Marketing

What is Email Click Rate?

Email Click Rate is the percentage of all emails delivered that received at least one click, measuring how many recipients took action on an email's content. It is distinct from email open rate, which only measures whether the email was opened, not whether it drove any engagement.

TL;DR

Email Click Rate measures what share of delivered emails actually got someone to click, which is the real test of whether an email's content and offer worked.

Formula

Email Click Rate = (Unique Clicks / Emails Delivered) × 100

Why It Matters

Click rate is the metric that tells a marketer whether an email actually drove action, not just attention. It's the natural next step after open rate: opens show the subject line worked, but clicks show the body content, offer, and call to action worked too. Reading click rate alongside open rate is what lets a team diagnose exactly where an underperforming email is breaking down, since a strong open rate paired with a weak click rate points squarely at the content or offer rather than the subject line. Ignoring click rate and optimizing only for opens can produce campaigns that look successful on a vanity metric while generating no real business outcome. It also feeds directly into downstream metrics like conversion rate, since a click is usually the required first step toward any purchase or signup that follows.

Example

A campaign is delivered to 40,000 inboxes and generates 800 unique clicks. Email click rate is 800 divided by 40,000, times 100, which equals 2%. If open rate for the same campaign is 25% but click rate is only 2%, that gap suggests the subject line is working but the email body, call to action, or offer inside is not compelling enough to convert opens into clicks, a diagnosis that requires reading both metrics side by side rather than either one alone.

Frequently Asked Questions

  • Most email platforms count a unique click, meaning one recipient clicking any tracked link in the email counts once toward the metric, regardless of how many times that same person clicks or how many different links they click.

  • Email click rate divides clicks by total emails delivered, while click-to-open rate divides clicks by emails opened. Click-to-open rate isolates content performance among people who already opened, while click rate reflects the full funnel from delivery to click.

  • It varies significantly by industry and list quality, but click rates in the low single digits are common across many B2C and B2B sends, with well-targeted or highly engaged lists reaching noticeably higher.

  • It's typically reviewed per campaign immediately after send, then rolled up monthly or quarterly to spot trends across a program, since a single send can be affected by factors like timing or list segment that don't reflect the broader program.

  • A clearer, more prominent call to action, a more relevant offer for the specific audience segment, and simplifying the email so the desired click is obvious are the most common levers, since click rate depends on content and offer quality rather than just getting the email opened.