PI DAX Function (Math and Trig)

Returns the value of π, 3.14159265358979, accurate to 15 digits.


PI ( )

This expression has no parameters.

Return values

Scalar A single decimal value.

A decimal number with the value of π, 3.14159265358979, accurate to 15 digits.


π is a mathematical constant. In DAX, π is represented as a real number accurate to 15 digits, the same as the function PI in Excel.


--  SQRTPI computes the square root of the value multiplied by Pi
--  PI returns the value of Pi with 15 digits of accuracy
    VAR Vals = GENERATESERIES ( 1, 25, 3 )
    "SQRTPI",       SQRTPI ( [Value] ),
    "SQRT and PI",  SQRT   ( [Value] * PI () )
1 1.77 1.77
4 3.54 3.54
7 4.69 4.69
10 5.60 5.60
13 6.39 6.39
16 7.09 7.09
19 7.73 7.73
22 8.31 8.31
25 8.86 8.86

Last update: May 23, 2024   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo

Microsoft documentation: https://docs.microsoft.com/en-us/dax/pi-function-dax

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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.


A volatile function may return a different result every time you call it, even if you provide the same arguments. Click to read more.


This parameter is deprecated and its use is not recommended.

DirectQuery compatibility

Limitations are placed on DAX expressions allowed in measures and calculated columns.
The state below shows the DirectQuery compatibility of the DAX function.


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