Calculate email click rate.
EmailOpen
Email Open Rate Calculator
Quick answer
If unique opens are 2,800 and delivered emails are 10,000, the email open rate is 28%.
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Email Open Rate
28%
The share of recipients who opened it, as a percentage of everyone it was sent to.
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Email Open Rate
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See how the result changes
Each table re-runs this calculator with one value changed and everything else left as it is.
Email Open Rate by unique opens
If unique opens goes from 2,800 to 4,200, email open rate changes from 28% to 42% (+50%).
| Unique opens | Email Open Rate |
|---|---|
| 1,400 | 14% |
| 2,100 | 21% |
| 2,800start | 28% |
| 4,200 | 42% |
| 5,600 | 56% |
Email Open Rate by delivered emails
If delivered emails goes from 10,000 to 15,000, email open rate changes from 28% to 18.67% (−33%).
| Delivered emails | Email Open Rate |
|---|---|
| 5,000 | 56% |
| 7,500 | 37.33% |
| 10,000start | 28% |
| 15,000 | 18.67% |
| 20,000 | 14% |
DIGITAL MARKETING GUIDE
A quick guide to Email Open Rate
Use it to get an accurate email open rate in seconds — free, with no sign-up.
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See your email open rate the moment you enter your numbers.
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How to Use the Email Open Rate Calculator
1
Enter Unique opens
Provide your unique opens.
2
Enter Delivered emails
Provide your delivered emails.
3
View Your Results
Get your email open rate instantly, calculated on our server.
What is Email Open Rate?
This digital marketing tool works out your email open rate instantly, so you don't have to do the math by hand.
“One quick calculation, so you always know your email open rate before you decide.”
What Affects Your Email Open Rate
Your email open rate depends on the values below.
Unique opens
Changing your unique opens changes your email open rate.
Delivered emails
Changing your delivered emails changes your email open rate.
Example Result
Here's what you can expect from an email open rate calculation:
- Unique opens
- 2800
- Delivered emails
- 10000
- Email Open Rate
- 28%
Frequently Asked Questions
- How does unique opens affect email open rate?
- If unique opens goes from 2,800 to 4,200, email open rate changes from 28% to 42% (+50%).
- How does delivered emails affect email open rate?
- If delivered emails goes from 10,000 to 15,000, email open rate changes from 28% to 18.67% (−33%).
- How to calculate email open rate?
- Fill in unique opens and delivered emails in the Email Open Rate Calculator above and your email open rate is calculated instantly. Change any value to see how the result responds.
- What does an example email open rate calculation look like?
- If unique opens are 2,800 and delivered emails are 10,000, the email open rate is 28%.
- Is this calculator free to use?
- Yes — every calculator on this site is completely free, with no sign-up or account required.
- How accurate is this calculator?
- It uses the standard formula and calculates on our server for every request, so results are precise for the values you enter.
- Is my data saved anywhere?
- No. Nothing you enter is stored or sent anywhere unless you choose to share a link with your values included.
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