Z-Score Calculator

Calculate the Z-score (standard score) for any data point. Understand how many standard deviations away from the mean.

Data Point (x) *

Mean (μ) *

Standard Deviation (σ) *

Precision

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Z-Score Result

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Standard Normal Distribution

Visual representation of Z-score position

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Step-by-Step Breakdown

Detailed calculation process

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Z-Score

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Data Point

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Mean (μ)

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Std Dev (σ)

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Formula Reference

Z-score formulas and rules

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Z-Score Tips

Understanding standard scores

📊 Statistical Disclaimer: Z-scores indicate how many standard deviations a data point is from the mean. Results assume a normal distribution for probability calculations. For educational purposes.