Newsletter unsubscribe rate calculator

Worked example

• Unsubscribes: 25
• Delivered emails: 10,000

Unsubscribe rate · 0.25%

How to interpret the result

Match unsubscribes to the send and use the same window when comparing editions.

Publisher example

18 unsubscribes from 9,000 deliveries gives 0.2%. Compare the same follow-up period before using a change to adjust mailing frequency.

Related reading: beehiiv adds email delivery reporting by inbox provider

Measurement reference: Mailchimp open and click measurement