Z-Score Calculator

Calculate z-scores step by step

The calculator will find the z-score (standardized score) given the unstandardized value, mean, and standard deviation of the population, with steps shown.

Enter your data or

Population mean: $$$\mu=$$$

Population standard deviation: $$$\sigma=$$$

Value: $$$x=$$$

If the calculator did not compute something or you have identified an error, or you have a suggestion/feedback, please write it in the comments below.


Your input: find the z-score of $$$x=2$$$ with $$$\mu = \frac{3}{2}$$$ and $$$\sigma = \frac{2}{5}$$$.

Z-score is calculated according to the following formula:


Answer: the z-score is $$$z=\frac{5}{4}$$$.