About Standard Deviation Calculator
Calculate sample and population standard deviation, variance, and mean from a dataset.. Designed for accurate, instantaneous calculations with zero wait time.
Formula
Sample SD: s = √[Σ(x - μ)² / (n - 1)] | Pop SD: σ = √[Σ(x - μ)² / n]
Example Calculation
For dataset [10, 12, 23, 23, 16], Mean is 16.8 and Sample SD is ~5.89.
How to Use
- Enter your values into the form fields above.
- The calculation updates immediately in real time.
- Inspect the main summary and secondary breakdowns below.