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SDCalc

Outlier Calculator

Detect outliers using IQR, Z-score, and Modified Z-score (MAD) methods with visual identification.

12 values
Instant Math
Sample (n-1) / Population (N)

Use when your data represents a subset of a larger population. Applies Bessel's correction.

No Data Detected

Input your numbers into the Standard Deviation Calculator panel to see real-time statistics, variance, and normal distribution charts.