Z Score Calculator

About Z Score Calculator

Calculate how many standard deviations a value is from the mean.

How to Use

Calculate how many standard deviations a value is from the mean. Enter the Value, Mean, and Standard deviation values and review the Z score and Distance from mean outputs after you calculate.

  1. Open the calculator : Use Z Score Calculator from the Math category.
  2. Check the inputs : Review the required values and any optional settings.
  3. Read the formula : Use the formula and notes below to understand how the result is produced.

Common Questions

What formula does the Z Score Calculator use?

z = (x - mean) / standard deviation.

Inputs

  • Value
  • Mean
  • Standard deviation

Outputs

  • Z score
  • Distance from mean

Formula

z = (x - mean) / standard deviation