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Five-Number Summary Calculator

Get the min, Q1, median, Q3, and max of a dataset.

Introduction

Five-Number Summary Calculator — Get the min, Q1, median, Q3, and max of a dataset. Enter Dataset (comma-separated) to get an instant, accurate result.

Formula

Minimum, Q1, median (Q2), Q3, and maximum — the five values used to construct a box plot.

Step-by-step

  1. Enter the Dataset (comma-separated).
  2. Click Calculate to see your result instantly.

Real-world example

Example: With Dataset (comma-separated) = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, the Five-Number Summary Calculator gives Min: 1, Q1: 3.25, Median: 5.5.

Frequently Asked Questions

What is the five-number summary used for?
It gives a quick snapshot of a dataset's spread and center, and is the basis for drawing a box-and-whisker plot.
How are the quartiles calculated?
Using linear interpolation between the closest ranks in the sorted data, the same method as the percentile calculator.
What inputs does the Five-Number Summary Calculator need?
You'll need to provide: Dataset (comma-separated). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Five-Number Summary Calculator?
The Five-Number Summary Calculator applies the formula exactly as calculated — Minimum, Q1, median (Q2), Q3, and maximum — the five values used to construct a box plot. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Five-Number Summary Calculator free to use?
Yes, the Five-Number Summary Calculator is completely free, requires no signup, and runs instantly in your browser.

About the Five-Number Summary Calculator

The Five-Number Summary Calculator uses a real, verifiable formula — Minimum, Q1, median (Q2), Q3, and maximum — the five values used to construct a box plot. — so results are accurate every time, not an approximation.