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PI Function in Excel: Syntax, Examples and Free Practice

By Rinkesh Shah, founder of Cellgrids.

PI is an Excel Math & Trig function. Returns the value of pi.

PI syntax

=PI()

When to use PI

PI is used in financial models and engineering-style calculations where precise numeric work is needed.

Practice PI online, free

Open the live Excel-style spreadsheet and try PI yourself. No Excel install or sign-up needed to start.

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More Math & Trig functions

Frequently asked questions

What does the PI function do in Excel?

Returns the value of pi.

What is the syntax of PI in Excel?

The syntax is =PI().

Where can I practice PI online for free?

Open the free live spreadsheet on Cellgrids and try PI yourself. No Excel install is needed and you can start without signing up.

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