ISNUMBER DAX Function (Information)

Checks whether a value is a number, and returns TRUE or FALSE.


ISNUMBER ( <Value> )
Parameter Attributes Description

The value you want to test.

Return values

Scalar A single boolean value.

TRUE if the value is numeric; otherwise FALSE.


When applied to a column reference as expression, this functions tests the data type of the column, returning TRUE whether the column is of any numeric data type (Currency, DateTime, Decimal, Integer) and FALSE for any other data type.
IMPORTANT: This function does not test whether a string can be converted to a number.

Related functions

Other related functions are:

Last update: Sep 27, 2020   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo

MSDN documentation:

Context Transition

This function performs a Context Transition if called in a Row Context. Click to read more.

Row Context

This expression is executed in a Row Context. Click to read more.


Not recommended

The use of this function is not recommended. See Remarks and Related functions for alternatives.

Not recommended

The use of this parameter is not recommended.


This function is deprecated. Jump to the Alternatives section to see the function to use.


This parameter is deprecated and its use is not recommended.


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