Standard Deviation Calculator
Enter numbers (comma or space-separated) to calculate standard deviation, variance, SEM, and more.
This tool helps professionals in statistics, research, finance, and data analysis calculate key statistical measures with step-by-step explanations. Whether you're working with population data or sample data, this calculator provides accurate results with detailed breakdowns of each calculation step.
Standard Deviation Calculator
Calculation Results
Standard Deviation (σ):
Count (N):
Sum (Σx):
Mean (μ):
Variance (σ²):
Standard Error (SEM):
Confidence Intervals
68.3%:
95%:
99.9%:
Step-by-Step Calculation
Frequency Table
| Value | Frequency | Percentage |
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