Standard Deviation Calculator
Compute standard deviation for a dataset. Choose population (σ) or sample (s).
About This Calculator
The Standard Deviation Calculator measures the spread of data around the mean. It computes both population and sample standard deviation, helping you understand data variability.
How to Use
- Enter your numbers separated by commas or spaces
- Select Population or Sample calculation
- Click Calculate to see the standard deviation
- View variance and other statistics
Practical Use Cases
- Quality Control: Monitor process consistency
- Finance: Measure investment volatility
- Research: Quantify data spread
- Manufacturing: Set tolerance limits
- Education: Analyze score distributions
? Frequently Asked Questions
How accurate is this
This calculator uses standard formulas and provides accurate results for typical use cases. For professional or critical applications, always verify results with certified professionals or official sources.
Is this calculator free to use?
Yes, this Statistics Standard Deviation Calculator is completely free to use with no registration required. You can use it as many times as needed without any limitations.
Can I use this on mobile devices?
Absolutely! This calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers.
How do I interpret the results?
The results are displayed clearly with appropriate units. Refer to the "About This Calculator" section for detailed information.