PI

Microsoft Office Excel 2003

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See Also

Returns the number 3.14159265358979, the mathematical constant pi, accurate to 15 digits.

Syntax

PI( )

Example

The example may be easier to understand if you copy it to a blank worksheet.

Show How?

  1. Create a blank workbook or worksheet.
  2. Select the example in the Help topic. Do not select the row or column headers.

    Selecting an example from Help

    Selecting an example from Help

  3. Press CTRL+C.
  4. In the worksheet, select cell A1, and press CTRL+V.
  5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.
 
1
2
A
Radius
3
Formula Description (Result)
=PI() Pi (3.14159265358979)
=PI()/2 Pi/2 (1.570796327)
=PI()*(A2^2) Area of a circle, with the radius above (28.27433388)
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