Z-Score Calculator

Calculate the standard score (z-score) of a raw value. Determine exactly how many standard deviations a data point is from the mean and its corresponding percentile.

Standard Score Data

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Enter the raw score, mean, and standard deviation to calculate the Z-score and percentile.

How to Use

  1. 1

    Enter Raw Score

    Input the specific data point (X) you want to analyze.

  2. 2

    Enter Mean

    Input the population mean (μ) of your dataset.

  3. 3

    Enter Standard Deviation

    Input the population standard deviation (σ).

  4. 4

    Calculate

    Click calculate to find the Z-score and see its percentile interpretation.

Frequently Asked Questions

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