Descriptive statistics
Variance calculator
Calculate population and sample variance for a five-value dataset.
How to use this calculator
Enter Value 1, Value 2, Value 3, Value 4 and Value 5. Calculate population and sample variance for a five-value dataset. The answer updates when you change an input.
Understanding the result
Variance measures spread as the average squared distance from the mean. Its units are squared, while standard deviation returns to the original units.
Common questions
What assumptions does this result use?
Exactly five equally weighted observations are used; sample variance applies Bessel’s correction.
Are intermediate values rounded?
No. The calculation retains JavaScript number precision internally and formats only the displayed result unless the stated method requires a discrete whole value.