Statistics Calculator

Every common descriptive statistic, computed at once from a single list of numbers.

Count
10
Sum
430
Mean
43.0000
Median
45
Mode
45
Min
12
Max
88
Range
76
Q1
25.75
Q3
50.25
IQR
24.5
Population variance
471.2000
Sample variance
523.5556
Population std. dev.
21.7071
Sample std. dev.
22.8813

Frequently asked questions

What's the difference between this and the other statistics tools?

This is the comprehensive, all-at-once version — if you only need one or two specific values, the dedicated Standard Deviation Calculator or Mean/Median/Mode/Range Calculator may be quicker to read.

What's IQR, and why does it matter?

The interquartile range (Q3 minus Q1) captures the spread of the middle 50% of your data, ignoring extreme values — it's a more outlier-resistant measure of spread than the full range.