Compute (x - mean) / stddev.
Last Updated: 26 Jan 2026
Z-score: 0.625
Z-Score Calculator helps you compute (x - mean) / stddev. It is commonly used by students, analysts, educators for z score, z-score calculator, standard score.
Standardize a Value
Z-score tells you how many standard deviations a value (x) is above or below the mean.