The Excel PERCENTILE.EXC Function

Related Functions:
PERCENTILE.INC
QUARTILE.EXC
Percentile

The k'th percentile of a range of data is the value that k% of the data values fall within.

This is explained in more detail on the Wikipedia Percentile page.
PERCENTILE.INC & PERCENTILE.EXC Functions

In Excel 2010, the new PERCENTILE.INC and PERCENTILE.EXC functions both find the k'th percentile of a supplied data set.

The difference between these two functions is that, in the Percentile.Inc function the value of k is is within the range 0 to 1 inclusive, and in the Percentile.Exc function, the value of k is within the range 0 to 1 exclusive.

Basic Description

The Excel PERCENTILE.EXC function returns the k'th percentile of a supplied range of values for a given value of k, within the range 0 to 1 (exclusive).

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

The syntax of the Percentile.Exc function is:

PERCENTILE.EXC( array, k )

Where the function arguments are:

array-The array of data values for which you want to calculate the k'th percentile.
k-The value, between 0 and 1 (exclusive), of the required percentile.

If k is not a multiple of 1/(n+1), (where n is the number of values in the supplied array), the Percentile.Exc function interpolates between the values in the supplied array, to calculate the percentile value. However, if k is < 1/(n+1) or k is > n/(n+1), the function is unable to interpolate, and so returns an error.


Percentile.Exc Function Examples

The spreadsheets below show examples of the Excel Percentile.Exc function used to calculate the k'th percentile of a set of values in cells A1-A4 of the sample spreadsheet, for different values of k.

 Formulas:
 AB
11=PERCENTILE.EXC( A1:A4, 0.2 )
22=PERCENTILE.EXC( A1:A4, 60% )
33=PERCENTILE.EXC( A1:A4, 50% )
44=PERCENTILE.EXC( A1:A4, 95% )
 Results:
 AB
111
223
332.5
44#NUM!

Note that in the above examples:

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


Percentile.Exc Function Errors

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

Common Errors
#NUM!-

Occurs if either:

  • The supplied value of k is < 1/(n+1) or > n/(n+1)
    (where n is the number of values in the supplied array)
or
  • The supplied array is empty.
#VALUE!-Occurs if the supplied value of k is non-numeric.