Standard Deviation Calculator
Calculate population and sample standard deviation with our easy-to-use online tool
Information and methodology provided by Calculator.now
Accepts comma, space, or new line separated numbers
Population Standard Deviation (σ)
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Sample Standard Deviation (s)
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Why Use Our Calculator?
Easy to Use
Simple interface for quick calculations
Accurate Results
Precise calculations for both population and sample standard deviations
Free to Use
No registration required, completely free
Standard Deviation Formula
σ = √ Σ(x - μ)² N
Where:
- σ = Standard Deviation
- Σ = Sum of
- x = Each value in the dataset
- μ = Mean of all values
- N = Number of values (use N-1 for sample)