Variance Calculator

Calculate population or sample variance easily from a set of numbers.

Enter Data Values

Population Variance Sample Variance Calculate Variance

What Is Variance?

Variance measures how far a set of numbers are spread out from their average (mean). A higher variance indicates greater variability in the data.

Why Use a Variance Calculator?

• ✔ Analyze data distribution
• ✔ Support statistics & research
• ✔ Compare data variability
• ✔ Foundation for standard deviation

Calculator Stats

• Category: Statistics & Math
• Inputs: Numeric dataset
• Modes: Population & Sample
• Output: Variance value

Calculation Formula

Population Variance:

σ² = Σ(x − μ)² / N

Sample Variance:

s² = Σ(x − x̄)² / (N − 1)

Disclaimer: This calculator provides mathematical results for educational and analytical use.

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