Email Opens vs Email Clicks

Email Opens and Email Clicks measure different levels of engagement with email marketing campaigns. Email Opens track when recipients load images in an email, indicating they've at least seen the message, while Email Clicks measure when recipients actively click on links within the email, demonstrating deeper engagement and interest in the content. Opens provide insight into the effectiveness of subject lines and sender information, whereas clicks reveal the appeal of the actual content, offers, and calls-to-action within the email.

A marketing team should prioritize Email Opens when testing subject line variations or sending time optimization, as these elements primarily affect whether recipients open the email in the first place. However, when evaluating the performance of different content types, offers, or call-to-action buttons, Email Clicks become the more valuable metric since they indicate which elements successfully prompted action. For instance, if a company notices consistently high open rates but low click rates, this suggests that while their subject lines are compelling, the email content itself isn't effectively motivating recipients to take the desired next step, indicating a need to revise the content strategy rather than the delivery approach.

Email Opens

Email Clicks

What is it?

Email Opens counts the total number of times an email is opened by all recipients, including multiple opens by the same person.

Email Clicks is a count of the total number of times any link in an email was clicked by recipients. Marketers use Email Clicks to calculate key performance metrics like Click-Through Rate (CTR) and Click-to-Open Rate (CTOR), and to compare engagement across campaigns.

Formula

ƒ Count(Email Opens)
ƒ Count(Email Clicks)

Example

You send a newsletter to 1,000 subscribers. Of those, 600 open the email, but 100 of them open it twice. Your total Email Opens = 500 (opened once) + (100 × 2) = 700 Email Opens. This tells you how many total open events occurred across the campaign.

Over one month, you send two newsletters to your subscriber list. Each email contains a link to your product page and several links to blog posts.

Email 1: 300 clicks. Email 2: 650 clicks.

Formula: Count(Email Clicks)

Total Email Clicks for the month: 300 + 650 = 950.

The second email generated more than twice the clicks of the first. To understand why, calculate CTR and CTOR for each send. Those metrics account for list size and open rate, giving you a more accurate picture of what drove the difference.

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Published and updated dates

Date created: Oct 12, 2022

Latest update: Jun 4, 2026

Date created: Oct 12, 2022

Latest update: Jun 4, 2026