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Upper and Lower Hinge in Box Plot are different from PERCENTILE() calculation

Publish Date: Feb 25, 2026
Description
A calculated field using the function PERCENTILE() returns different results than the upper and lower whisker of a Tableau generated Box Plot view.

Cause

Tableau uses Tukey inclusionary hinges rather than the 25th and 75th percentiles. 

Resolution

For a detailed explanation of how Tukey inclusionary hinges are calculated, please go through the links in the Additional Resources section below.

Additional Resources

Tukey inclusionary hinges by Statics How To

Inclusionary Hinge Definition ("Tukey")

Note: While we make every effort to keep references to third-party content accurate, the information provided might change without notice. 



 

Knowledge Article Number

001473205

 
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