Z-Score Calculator
Calculate the standard score (Z-score) of a value based on the mean and standard deviation.
In-Depth Guide
Everything you need to know
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.
Interpretation:
- Z = 0: The value is exactly average.
- Positive Z: The value is above average.
- Negative Z: The value is below average.
- |Z| > 2: The value is considered statistically significant (unusual).