Standard Deviation Calculator
Calculate mean, median, mode, variance, standard deviation and more from your dataset
Enter numbers separated by commas, spaces, newlines, or tabs
Results
Count (n)
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Sum (\u03A3x)
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Mean (μ)
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Median
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Mode
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Range
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Min
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Max
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Variance (σ²)
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Variance (s²)
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Std Dev (σ)
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Std Dev (s)
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Data Table
| # | Value | Deviation (x-\u03BC) | (x-\u03BC)² |
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About this Calculator
The Standard Deviation Calculator is a free, easy-to-use tool for statistics, variance, mean. Simply enter your values and get instant, accurate results — no signup, no ads, no tracking. All calculations run locally in your browser, so your data stays completely private.
Privacy Note: All calculations are performed locally in your browser. No data is ever sent to a server or third party.