Excel Rand Function

Related Function:
RANDBETWEEN

Basic 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:

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

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=RAND( ) * 100 - returns a random number between 0 and 100
3=RAND( ) * (1.2 - 0.8) + 0.8 - 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.


Further details of the Excel Rand Function are provided on the Microsoft Office website.