Marketing & Email calculator
Email CTR Calculator
Calculate the three core email engagement rates from your campaign report. Everything runs in your browser — nothing you enter is sent anywhere.
Your numbers
Change any value — results update as you type
Values are estimates. Nothing you enter leaves this page.
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Clicks as a share of delivered emails.
Open rate
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Click-to-open rate
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Read this estimate carefully
Open rates are less reliable since mail apps started pre-loading images; clicks are the steadier signal. Email apps that preload images can inflate opens, so treat open rate as a rough signal and clicks as the firmer measure.
How to use it
- Enter emails delivered (sent minus bounces).
- Enter unique opens and unique clicks.
- Read open rate, CTR and click-to-open.
How it is calculated
- Open rate = opens ÷ delivered
- CTR = clicks ÷ delivered
- Click-to-open = clicks ÷ opens
Common questions
Delivered or sent?
Delivered, so bounces do not distort the rates.
Why is click-to-open useful?
It shows how engaging the content was for people who opened.
Are opens accurate?
Not fully; use clicks and conversions as the main measures.