Email Open and Click Rate Calculator
Works out the main rates for an email campaign from the raw counts.
Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
The formula
delivered = sent − bounced open rate = unique opens ÷ delivered click rate = unique clicks ÷ delivered click-to-open = unique clicks ÷ unique opens
Some email tools divide by emails sent and not delivered, so a figure here can differ slightly from your report.
What to watch out for
Use unique counts, so that one person opening an email five times counts once. Treat the open rate as a rough signal and compare clicks when you judge a campaign.
Frequently Asked Questions
How do I calculate email open rate?
Divide unique opens by emails delivered. 2,450 opens from 10,000 sent with 200 bounces is 25.00%.
What is the difference between click rate and click-to-open rate?
Click rate divides clicks by emails delivered, and click-to-open divides them by opens. 294 clicks is 3.00% of 9,800 delivered and 12.00% of 2,450 opens.
Why are open rates unreliable?
An open is recorded when a tracking image loads. Since 2021, Apple Mail Privacy Protection has been able to load that image without the person reading the email, and blocked images can hide real opens. Trends on one list say more than a single figure, but clicks are firmer.