Free Email Open Rate Calculator
Calculate email open rate to measure what percentage of recipients open your marketing or transactional emails.
Open Rate
20.00%
Open Rate vs Emails Opened
How to Calculate Email Open Rate
Formula
Open Rate = (Emails Opened / Emails Delivered) x 100
Open rate indicates how well your subject lines and sender reputation attract attention in crowded inboxes. Use delivered emails (not sent emails) as the denominator to exclude bounces, which the recipient never had a chance to see. Note that privacy features like Apple Mail Privacy Protection can inflate open rates by pre-loading tracking pixels.
Example Calculation
An email campaign delivered 4,000 emails and 800 were opened.
- 01Open Rate = (800 / 4,000) x 100 = 20%
- 02Unopened = 4,000 - 800 = 3,200
Frequently Asked Questions
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