Enter the number of clicks and the number of opens into the Click to Open Rate Calculator. The calculator will evaluate the Click to Open Rate. 

Click to Open Rate Formula

The following two example problems outline the steps and information needed to calculate the Click to Open Rate.

COR = C / O * 100

  • Where COR is the Click to Open Rate (%)
  • C is the number of clicks 
  • O is the number of opens 

How to Calculate Click to Open Rate?

The following example problems outline how to calculate Click to Open Rate.

Example Problem #1:

  1. First, determine the number of clicks. 
    • The number of clicks is given as: 500.
  2. Next, determine the number of opens. 
    • The number of opens is provided as: 1000.
  3. Finally, calculate the Click to Open Rate using the equation above: 

COR = C / O * 100

The values provided above are inserted into the equation below and computed.

COR = 500 / 1000 * 100 = 50.00 (%)


Example Problem #2: 

For this problem, the variables required are provided below:

number of clicks = 45

number of opens = 60

Test your knowledge using the equation and check your answer with the calculator..

COR = C / O * 100 = ?