Interquartile Range Calculator

Calculate Q1, Q3, the interquartile range, and common outlier fences.

Numbers separated by commas, spaces, or new lines

—

Q1—

Q3—

Lower fence—

Upper fence—

About this calculator

Calculate Q1, Q3, the interquartile range, and common outlier fences.

Results are intended for education and general analysis. Check assumptions and use an appropriate statistical method for important decisions.