statistics
Descriptive Statistics Calculator
Calculate count, sum, mean, median, Q1, Q3, IQR, modes, range, population/sample variance, and standard deviation from pasted data.
Calculator
Formula
mean = Σx/n; IQR = Q3 − Q1; σ² = Σ(x−x̄)²/n
Assumptions and limits
- Sample variance requires at least two observations.
Example
A ready-to-load example
The calculator starts with an editable example.
Sources
Frequently asked questions
Are my inputs uploaded?
No. This calculator runs locally in your browser. Inputs are placed in a URL only when you explicitly copy a share link.
Why are units converted first?
Canonical units prevent scale errors when inputs use mixed units. The result is converted back to your selected output unit afterward.
Does the result replace professional judgment?
No. The result applies only to the stated model and assumptions. Qualified people should review high-risk engineering, medical, or laboratory decisions.