Click-to-Open Rate (CTOR) Table: Click-to-open rate by Unique clicks
Reference table of click-to-open rate for Click-to-Open Rate (CTOR) across a range of unique clicks values — exact, engine-computed figures you can read off at a glance.
Click-to-Open Rate (CTOR) Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Click-to-open rate
20.00%
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Click-to-Open Rate (CTOR) Calculator
The Click-to-Open Rate (CTOR) Calculator works out your click-to-open rate in an instant. Enter unique clicks and unique opens and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the unique clicks.
- Enter the unique opens.
- Read off your click-to-open rate — the calculator updates automatically, with no button to press.
Formula
The Click-to-Open Rate (CTOR) Calculator uses the formula:
Click-to-open rate = Unique clicks ÷ Unique opens × 100
Worked example
For example, with unique clicks of 50 and unique opens of 250, the click-to-open rate is 20.00%.
| Unique clicks | 50 |
|---|---|
| Unique opens | 250 |
| Click-to-open rate | 20.00% |
|---|
Results are estimates for educational use, not professional advice.
Frequently asked questions
Divide unique clicks by unique opens and multiply by 100. 50 clicks from 250 opens is a 20% CTOR.
Click rate uses all delivered emails; CTOR uses only those opened, so it measures how compelling the content is to readers.
It varies by industry, but many campaigns aim for 10–20%. Strong content and clear calls to action raise it.
It isolates the message and design from the subject line, showing whether openers found the content engaging.
Enter the unique clicks. Enter the unique opens. Read off your click-to-open rate — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Click-to-Open Rate (CTOR): Formula, Steps & Examples
Learn how to calculate Click-to-Open Rate (CTOR) — the formula explained step by step, with worked examples and a free calculator to check your answer.