Interquartile Range Calculator

Paste at least four numbers. Match the quartile method required by your textbook or software. IQR = Q3 - Q1; fences flag possible outliers without deleting them.

Use commas, spaces, semicolons, tabs, or one number per line.

IQR
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Q1 —
Median —
Q3 —
1.5 x IQR fences —
Flagged observations —
Quartile method —
Show calculation details Hide calculation details

Sorted observations

Sorted observations —

Quartile working

Quartile working —