Open Rate refers to the key email marketing metric used to measure the percentage of recipients who open a specific email. This metric is helpful for marketers to assess the effectiveness of overall email, subject lines, sender names, and timing strategies. This enables markets to understand which email works well to convert users and make them click on it. 

How to Calculate Open Rate
Open Rate is typically calculated by dividing the number of unique email opens by the number of emails delivered, then multiplying by 100.

What is considered a good open rate? 

A good open rate for email marketing falls between 17% and 28%, depending on the industry.

General breakdown of the good open rate 

• Excellent: 30% 
• Good: 20%–29%
• Average: 17%–19%
• Below Average: Under 15%

While knowing the open rate is a great starting point 

Benefits of Calculating Open Rate

• Indicates email engagement and relevance
• Helps optimize subject lines and send times
• Provides insight into audience interest
• Supports A/B testing effectiveness

Open Rate is a foundational email performance indicator that helps marketers refine content and engagement strategies, boosting the overall success of email campaigns.