Standard Deviation Calculator
Calculate standard deviation, variance, mean, and other statistical measures for your dataset.
0 numbers
Sum: 0
Statistical Results
Data Points: 0Enter your data and click "Calculate" to see results.
How to Use the Standard Deviation Calculator
Standard deviation measures how spread out numbers are from the average (mean). Use this tool to analyze your data sets quickly and accurately.
-
1. Enter Your Data: Type or paste your numbers in the text box. You can separate them with commas, spaces, or new lines. For example:
5, 7, 12, 15, 20or5 7 12 15 20. -
2. Select Calculation Type: Choose which standard deviation you want to calculate:
-
Population Standard Deviation (σ): Use when your data represents the entire population.
-
Sample Standard Deviation (s): Use when your data is a sample from a larger population.
-
-
3. Calculate: Click the "Calculate" button to process your data. Not sure where to start? Click "Load Example" to see the tool in action with sample data.
-
4. Review Results: The calculator will display various statistical measures including mean, variance, and standard deviation. Use "Copy Results" to save them or "Show Formula" to understand the calculation method.
