## Excel QUARTILE.INC function

The QUARTILE.INC function returns the quartile for a given set of data based on a percentile range of 0 to 1 inclusive. It returns the same value as the QUARTILE function.

#### QUARTILE.INC function VS. QUARTILE function:

Starting from Excel 2010, the **QUARTILE function** has been replaced by the QUARTILE.INC function. Although they can both be used to calculate the quartile of a data set, the **QUARTILE.INC function** is more recommended for future use, because the QUARTILE function may not be available in future versions of Excel.

#### QUARTILE.INC function VS. QUARTILE.EXC function:

The difference between these two functions is that the QUARTILE.INC function calculates the quartile of a data set based on a percentile range of 0 to 1 inclusive, whereas the QUARTILE.EXC function calculates the quartile of a data set based on a percentile range of 0 to 1 exclusive.

#### Syntax

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

#### Arguments

**Array**(required): The array or cell range for which you want the quartile value;**Quart**(required): A number between 0 and 4 indicates which quartile value to return.

Number | Quartile value |

0 | Minimum value |

1 | The 1st quartile (25th percentile) |

2 | The 2nd quartile - median value (50th percentile) |

3 | The 3rd quartile (75th percentile) |

4 | The 4th quartile - maximum value (100th percentile) |

#### Remarks

**“quart”**is not an integer, it will be truncated;

**#NUM!**error occurs when either of the following conditions is met;

**“array”**is empty;

**“quart”**< 0 or

**“quart”**> 4.

**#VALUE!**error occurs if “quart” is non-numeric;

**“array”,**Excel will interpolate between these values to calculate the quartile.

#### Return value

It returns a numeric value.

#### Example

Here is a list of values as shown in the screenshot below, to calculate the minimum value, first quartile, second quartile, third quartile and maximum value by using the QUARTILE function, you can do as follows.

Select the top cell, E6 in this case, copy or enter the formula below and press Enter to get the result of the minimum value. Select this result cell and drag it AutoFill Handle down to get other quartiles.

**=QUARTILE.INC($B$6:$B$13,D6)**

**Notes:**

1) The formula in cell E6 can be changed to:

**=QUARTILE.INC({2,4,5,10,12,15,20,60},0)**

2) The formula can be broken into the following two equations:

**2.1 Firstly, apply the following equations to find the position of each quartile in the array**:

(In the following equations, n is the total number of cells in the array.)

**2.1.1 The equation for calculating the position of Q1**:

**= 1/4*(n-1)+1**

**1/4*(8-1)+1=2.75**, which means that the first quartile is located between the second and third digits of the array.

**2.1.2 The equation for calculating the position of Q2**:

**= 2/4*(n-1)+1**

**2/4*(8-1)+1=4.5**, which means that the second quartile is located between the fourth and fifth digits of the array.

**2.1.3 The equation for calculating the position of Q3**:

**= 3/4*(n-1)+1**

**1/4*(8-1)+1=6.25**, which means that the third quartile is located between the sixth and seventh digits of the array.

**2.1.4 The equation for calculating the position of Q4**:

**= 4/4*(n-1)+1**

**1/4*(8-1)+1=8**, which means that the fourth quartile is located exactly in the eighth cell of the array.

**2.2 Then, return the quartiles based on the positions**.

**=(C7*0.25)+(C8*0.75)/(0.25+0.75)**// result is 4.75

**=(C9+C10)/2**// result is 11

**=(C11*0.75)+(C12*0.25)/(0.75+0.25)**// result is 16.25

**=C13**// result is 60

#### Related Functions

**Excel QUARTILE.EXC function**

The QUARTILE.EXC function returns the quartile for a given set of data based on a percentile range of 0 to 1 exclusive.

**Excel QUARTILE function**

The QUARTILE function calculates the quartile for a given set of data.

**Excel RANK function**

The RANK function returns the rank of a number compared to other numbers in the same list.

**Excel RANK.AVG function**

The RANK.AVG function returns the rank of a number compared to other numbers in the same list.

**Excel RANK.EQ function**

The RANK.EQ function returns the rank of a number compared to other numbers in the same list.

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