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Variance Calculator
Sample and population variance for any dataset. σ² = Σ(x − μ)² / n (population) or n−1 (sample, Bessel correction).
MATHSample and population variance for any dataset. σ² = Σ(x − μ)² / n (population) or n−1 (sample, Bessel correction).
Detailed instructions, formula notes, and US-context guidance shown in the calculator above.
Disclaimer: Estimate only. Consult a qualified professional for decisions with major financial, legal, or health consequences.
Variance Calculator (Sample & Population)
σ² = Σ(x − μ)² / n (population) or n−1 (sample, Bessel correction). Standard deviation = √variance.
Sample Variance (default)
4.5000
Sample SD2.1213
Population Variance3.9375
Population SD1.9843
Mean6.2500
n8
Frequently Asked Questions
What is the Variance Calculator for?
Sample and population variance for any dataset. σ² = Σ(x − μ)² / n (population) or n−1 (sample, Bessel correction).
How do I use the Variance Calculator?
Detailed instructions, formula notes, and US-context guidance shown in the calculator above.
How accurate are my variance results?
Estimate only. Consult a qualified professional for decisions with major financial, legal, or health consequences.
Is the Variance Calculator free to use?
Yes - every calculator on WhichCalc is completely free with no signup, no usage limits, and no tracking on the calculation itself. Results display instantly in your browser and your inputs are never sent to a server. Bookmark the page if you use this calculator regularly.