Excel Rand Function

Related Function:
RANDBETWEEN

Function Description

The Excel Rand function generates a random real number between 0 and 1.

The function takes no arguments and therefore, its syntax is:

RAND( )

Although the number generated is between 0 and 1, you can use the function to generate a random real number between any two supplied limits a and b, using the formula:

=a + (b-a) * RAND( )

Examples of this are provided below.


Rand Function Examples

In the following spreadsheet, the Excel Rand function is used to generate random numbers between different limits.

 A
1=RAND( ) - returns a random real number between 0 and 1
2=100 * RAND( ) - returns a random number between 0 and 100
3=0.8 + (1.2 - 0.8) * RAND( ) - returns a random number between 0.8 and 1.2

Note that the above formulas will return a different random number every time the spreadsheet recalculates. To force a recalculation at any time, press the F9 key.


For further details of the Excel Rand Function, see the Microsoft Office website.