Email Open Rate

Output: Press calculate

Formula:Email Open Rate = (Opened Emails / Sent Emails) * 100

Introduction to Email Open Rate

The email open rate is a measure of how many recipients open an email campaign. It is calculated by dividing the number of opened emails by the number of sent emails and multiplying by 100 to express it as a percentage. This formula is commonly used in email marketing analytics to evaluate the effectiveness of email campaigns.

Parameter usage:

Example valid values:


Data validation

The number of opened emails and sent emails should be greater than or equal to 0. The sent emails parameter should not be 0 to avoid division by zero error.


This calculator helps measure the effectiveness of email marketing campaigns by providing the email open rate as a percentage.

Tags: Email Marketing, Analytics, Statistics