CTOR Calculator

Measure the percentage of email openers who click an email link.

Your calculation result will show up here.

Your CTOR is:

What is click-to-open rate (CTOR)?

CTOR measures how frequently an email open is associated with a click. It helps evaluate the content and call to action among recipients who opened an email.

How to use this tool

CTOR = clicks ÷ email opens × 100. For a recipient-level measure, use unique clickers and unique openers from the same email campaign and reporting window.

Example

120 unique clickers among 600 unique openers gives a CTOR of 20%.

Understanding your result

Do not mix total clicks with unique opens when comparing campaigns. Automated link checks and privacy-related open tracking can distort the inputs. CTOR is different from clicks divided by delivered emails.

Related tools: CTR Calculator · Response Rate Calculator.

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Put this calculator on your website to increase visitor engagement and get more social shares!

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