Z-Score Calculator
Calculate the standard score (Z-score) to find how many standard deviations a value is from the mean.
Local-first
Z-score
1
Within ±2σ
How this tool works
What it accepts, how to use it, and where your input is processed.
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How this tool works
What it accepts, how to use it, and where your input is processed.
Show GuideHide Guide
Standardized Scores
The Z-Score (or Standard Score) tells you how many standard deviations a data point is from the mean. It's a universal way to compare values across different datasets with different units.
Statistical Significance
Easily identify outliers. A Z-score greater than 2 or less than -2 is typically considered unusual, while a score of 0 indicates the value is exactly at the mean.
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