How it works
Fill in the 5 fields above and Sample Variance Calculator calculates the result instantly, recalculating as you change any value. It applies the formula s² = Σ(x − x̄)² / (n − 1). The math runs locally in your browser — nothing is sent to a server.
Formula
s² = Σ(x − x̄)² / (n − 1)Examples
- Value 1 4, Value 2 8, Value 3 8 → Sample variance: 26.2
Frequently asked questions
How do I use the Sample Variance Calculator?
Enter your values in the 5 input fields and the result is calculated automatically as you type. Change any value to see the numbers update instantly.
What formula does the Sample Variance Calculator use?
It uses s² = Σ(x − x̄)² / (n − 1). The calculation is performed in your browser using standard, well-established math for accurate results.
Is my data private?
Yes. The Sample Variance Calculator runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.
Is the Sample Variance Calculator free?
Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on statistics and the rest of the platform, you can use it as often as you like.
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