Quartiles are used to divide a set of data into four equal parts. In this Excel tutorial, you will teach yourself how to calculate quartiles.

## Use of the QUARTILE.INC function

To calculate quartiles in Excel just use QUARTILE.INC function. The QUARTILE.INC function in Excel returns the quartile of a set of data.

QUARTILE.INC syntax is:

**=QUARTILE.INC(array, quart) **

where:

**array** is your data table

**quart** is a number of quartile which you want to calculate

Example:

Your data table is in A1:A10 range and you want to calculate second quartile.

## How to calculate a second quartile?

To calculate second quartile just use this function:

** =IFERROR(QUARTILE.INC(A1:A20,2),”No Values”)**

IFERROR function in this formula prevents you from #NUM! error. It happens when your data table will be empty.

## Examples of calculating quartiles

You can set quart in QUARTILE.INC formula to 0 – 4.

=IFERROR(QUARTILE.INC(A1:A20;0);”No Values”) – shows minimum value

=IFERROR(QUARTILE.INC(A1:A20,1),”No Values”) – calculates first quartile

=IFERROR(QUARTILE.INC(A1:A20,2),”No Values”) – calculates second quartile (which is median)

=IFERROR(QUARTILE.INC(A1:A20,3),”No Values”) – calculates third quartile

=IFERROR(QUARTILE.INC(A1:A20,4),”No Values”) – shows maximum value