Variance Calculator
Variance Calculator
Variance Calculator
Calculate sample and population variance
0 numbers entered
Calculate sample and population variance to measure how far values spread from mean. Fundamental statistical metric.
Key Features
Sample variance (s²)
Population variance (σ²)
Mean calculation
Standard deviation relationship
Clear explanations
Automatic computation
How to Use This Tool
Enter dataset separated by commas
Enter dataset separated by commas
Click Calculate Variance
Click Calculate Variance
View both sample and population
View both sample and population
Understand the difference
Understand the difference
Check formulas used
Check formulas used
Use Cases
Statistical analysis
Data quality assessment
Research studies
Quality control
Data science
Frequently Asked Questions
What is variance?
Average of squared deviations from mean
Sample vs Population?
Sample unbiased, Population complete
Why two values?
Different denominators (n-1 vs n)
Relationship to SD?
Variance = SD², SD = √variance
Tool Information
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