# MS Excel: PI Function (WS)

This Excel tutorial explains how to use the Excel PI function with syntax and examples.

## Description

The Microsoft Excel PI function returns the mathematical constant called pi, which is 3.14159265358979.

## Syntax

The syntax for the PI function in Microsoft Excel is:

`PI( )`

### Parameters or Arguments

There are no parameters or arguments for the PI function.

## Applies To

The PI function can be used in the following versions of Microsoft Excel:

• Excel 2013, Excel 2011 for Mac, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000

## Type of Excel Function

The PI function can be used in Microsoft Excel as the following type of function:

• Worksheet function (WS)

## Example (as Worksheet Function)

Let's look at some Excel PI function examples and explore how to use the PI function as a worksheet function in Microsoft Excel:

Based on the Excel spreadsheet above, the following PI examples would return:

```=PI()
Result: 3.141592654

=PI() * A1
Result: 59.69026042

=PI() / A2
Result: 0.184799568

=PI() + A3
Result: -9.858407346```
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