Box Plot Maker

Added 2026-08-29

Create a box-and-whisker plot with five-number summary, IQR fences and detected outliers.

✓ Runs locally in your browser✓ No account or dataset upload required✓ Effect sizes / uncertainty shown where appropriate

Sample valuesNumbers may be separated by commas, spaces, semicolons or new lines.

Minimum

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Median

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Maximum

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Outliers

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Statistical output is a calculation aid. Check assumptions, study design and reporting requirements before drawing scientific conclusions.

Small time-saver of the dayCtrl + Y / Ctrl + Shift + ZCtrl + Y / Ctrl + Shift + Z: Redo an action after Undo

Use Ctrl + Y / Ctrl + Shift + Z to redo an action after Undo. A small habit that keeps keyboard-heavy work moving.

About this tool

Create a box-and-whisker plot with five-number summary, IQR fences and detected outliers.

Common uses

boxplot generatorbox and whisker plot makerfive number summary calculatorquartile box plot

How it works

1Enter or paste the requested sample values, summary inputs or contingency data.
2Choose the method, confidence level or test options when available, then run the calculation.
3Review the estimate/test statistic together with p-value, confidence interval, effect size and method notes where available.

Does this statistics calculation upload my data?

No. Entered values are processed locally in your browser with JavaScript.

Should I interpret statistical significance by itself?

No. Review effect size, confidence intervals, study design, assumptions, sampling and multiplicity together with the p-value.