Z-Score Calculator

Calculate z-scores to determine how many standard deviations a data point is from the mean.

Input Values

Z-Score Formula

The z-score is calculated using the following formula:

z=X−Îŧ΃z = \frac{X - \mu}{\sigma}

Where:

  • XX = Raw score
  • Îŧ\mu = Population mean
  • ΃\sigma = Standard deviation