Variance Calculator
Enter a list of numbers to calculate sample or population variance in your browser.
A QUICK WALKTHROUGH
How to use this tool
- Enter finite numbers separated by commas, spaces, or new lines.
- Choose sample or population variance.
- Calculate and review the result.
Valid numeric input
Values must be finite, non-empty, and no greater than 1e12 in absolute value. Sample variance requires at least two values.
GOOD TO KNOW
Common questions
What is the difference?
Population variance divides by n; sample variance divides by n−1.
Are inputs uploaded?
No. Calculation runs locally in your browser.