Enter the number of conceptions and the number of possible attempts into the Conception Rate Calculator. The calculator will evaluate the Conception Rate. 

Conception Rate Formula

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

CR = C / A * 100

  • Where CR is the Conception Rate (%)
  • C is the number of conceptions 
  • A is the number of possible attempts 

How to Calculate Conception Rate?

The following example problems outline how to calculate Conception Rate.

Example Problem #1:

  1. First, determine the number of conceptions. 
    • The number of conceptions is given as: 45.
  2. Next, determine the number of possible attempts. 
    • The number of possible attempts is provided as: 90.
  3. Finally, calculate the Conception Rate using the equation above: 

CR = C / A * 100

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

CR = 45 / 90 * 100 = 50.00 (%)


Example Problem #2: 

For this problem, the variables required are provided below:

number of conceptions = 50

number of possible attempts = 100

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

CR = C / A * 100 = ?