The Excel QUARTILE.EXC Function

Related Functions:

The 1st, 2nd, 3rd or 4th quartile of a range of data is the value that 25%, 50%, 75% or 100% (respectively) of the data values fall within.

This is explained in more detail on the Wikipedia Quartile page

In Excel 2010, the new QUARTILE.INC and QUARTILE.EXC functions both find a requested quartile of a supplied data set.

The difference between these two functions is that the Quartile.Inc function bases its calculation on a percentile range of 0 to 1 inclusive, whereas the Quartile.Exc function bases its calculation on a percentile range of 0 to 1 exclusive.

Basic Description

The Excel QUARTILE.EXC function returns a requested quartile of a supplied range of values, based on a percentile range of 0 to 1 exclusive.

The function is new in Excel 2010 and so is not available in earlier versions of Excel.

The format of the Quartile.Exc function is:

QUARTILE.EXC( array, quart )

Where the function arguments are:

array-The range of data values for which you want to calculate the specified quartile.
quart-An integer between 1 and 3, representing the required quartile.
(If quart = 1 or 3, the supplied array must contain more than 2 values).

Note that:

The Quartile.Exc function is closely related to the Excel Percentile.Exc function in that:

Quartile.Exc Function Examples

The spreadsheets below show examples of the Excel Quartile.Exc function used to calculate the quartiles of the set of values 1 - 5 (stored in cells A1-A5 of the example spreadsheet).

12=QUARTILE.EXC( A1:A5, 1 )
21=QUARTILE.EXC( A1:A5, 2 )
34=QUARTILE.EXC( A1:A5, 3 )

Note that in the above examples:

For further examples of the Excel Quartile.Exc function, see the Microsoft Office website

Quartile.Exc Function Errors

If you get an error from the Excel Quartile.Exc function this is likely to be one of the following:

Common Errors

Occurs if either:

  • The supplied value of quart is is < 1 or > 3
  • The supplied array is empty
  • The supplied array has fewer than 3 values, and quart is equal to 1 or 3.
#VALUE!-Occurs if the supplied value of quart cannot be interpreted as a numeric value.