📐 Descriptive Statistics Calculator
Get a full statistical summary of your data set in one click. Enter up to eight values to see the mean, median, mode, range, variance, and standard deviation.
1
2
3
4
5
6
7
8
What This Calculator Does
This calculator produces a full descriptive summary of a small data set: the mean, median, mode, range, variance, and standard deviation, all from a single set of entered values.
The Formulas
- Mean = sum of all values ÷ count of values
- Median = the middle value when the data is sorted (or the average of the two middle values for an even count)
- Mode = the most frequently occurring value
- Range = maximum value − minimum value
- Population Variance = average of the squared differences from the mean; Sample Variance divides by (n − 1) instead of n
- Standard Deviation = the square root of variance
Population statistics assume your values represent the entire group of interest, while sample statistics assume your values are a sample drawn from a larger population — sample standard deviation is slightly larger to correct for that uncertainty. This tool is for general educational and analytical use.
Last reviewed August 2026