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πŸ“Š Standard Deviation Calculator

Calculate standard deviation, variance, and mean for any data set. Population and sample modes with step-by-step results.

Count (n)
7
Mean (ΞΌ)
21.0
Std Dev (Οƒ)
6.0
Sum: 147 Β· Variance: 36.0 Β· Range: 18

This free math calculator performs accurate calculations instantly. Enter your numbers and the tool computes results using precise mathematical formulas. All processing is done locally with no server communication. Whether you are a student checking homework or a professional doing quick calculations, this tool provides accurate answers without any downloads or signups.

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