Five-Number Summary Calculator
Summarize a dataset with its minimum, first quartile, median, third quartile, and maximum — the five values behind a box plot. Quartiles use linear interpolation between data points.
Inputs explained
- Numbers — Your data set, separated by commas. Example: 4, 8, 15, 16, 23, 42.
How to use it
- Fill in the fields above — each input has a hint describing exactly what to enter
- Press Calculate to get your result instantly, right on this page
- Copy the result, save the tool to favorites, or share and embed it anywhere
Understanding the result
Example: For 4, 8, 15, 16, 23, 42 the summary is min 4, Q1 9.75, median 15.5, Q3 21.25, max 42.
Frequently asked questions
How does this differ from the Quartile Calculator? The five-number summary includes everything the Quartile Calculator does (Q1, median, Q3) plus the dataset's minimum and maximum, giving the full set of values typically plotted in a box plot.
Why might my Q1 and Q3 not match values I calculated by hand? This calculator uses linear interpolation between data points for quartiles, which is one of several accepted methods; other methods (such as simple median-of-halves) can give slightly different Q1/Q3 values for the same dataset.
Is the Five-Number Summary Calculator free to use? Yes — it is completely free, with no sign-up, no download and no usage limits. You can use it as often as you need.
Is my data private? Yes. The calculation runs entirely in your browser — the values you enter are never sent to our servers, stored or shared with anyone.
What information do I need? Just the following: Numbers. Each field includes a hint explaining exactly what to enter.
Can I use it on my phone? Yes — the tool is fully responsive and works on any device, and the same calculator is available in the EasyWorkCalcs mobile app.
Privacy
Everything you enter into the Five-Number Summary Calculator is processed entirely in your browser. Nothing is uploaded, stored or shared — your data stays on your device.