Marketing & ecommerce

Email Open Rate Calculator

Calculate tracked unique opens as a share of delivered email.

No sign-upBrowser-only calculationsFormula & methodology
01

Your numbers

Use one currency and the same reporting period. Sample values are filled in to help you start.

emails
emails
emails

Your numbers stay in this browser.

02

Example result

Tracked open rate25%
Delivered emails
9,800 emails

Privacy features, bots and image blocking affect tracking. Open rate is a delivery diagnostic, not proof of human attention.

Understand the result

How to calculate it

Open rate = unique tracked opens ÷ (sent − bounced) × 100

Privacy features, bots and image blocking affect tracking. Open rate is a delivery diagnostic, not proof of human attention.

Worked example

This is an illustrative scenario, not a market benchmark. Select “Reset to example” to reproduce it in the calculator.

Emails sent
10,000 emails
Bounced emails
200 emails
Unique tracked opens
2,450 emails

Tracked open rate: 25%

Common questions

Email Open Rate FAQ

Why are opens higher than expected?

Privacy proxies can prefetch tracking images. Evaluate actual clicks and downstream outcomes alongside open data.

What does this calculation leave out?

Privacy features, bots and image blocking affect tracking. Open rate is a delivery diagnostic, not proof of human attention.

Are my inputs saved or sent to a server?

Calculations run in your browser. We do not send your inputs or results to our server or analytics. A comparison stays in this tab until it is refreshed. A CSV is saved only when you choose to download it. See our privacy policy for ordinary hosting and optional analytics data.

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