Z-Score Calculator

Calculate the Z-Score (standard score) for a value using mean and standard deviation.

Understanding Z-Score

A Z-Score represents how many standard deviations a value (X) is from the mean (μ). It helps in comparing scores from different datasets.

Formula:

Z = (X − μ) / σ

Example:

Value X = 75, Mean μ = 70, Standard Deviation σ = 5
Z = (75 − 70) / 5 = 1