SQRT Function in Excel: Syntax, Examples and Free Practice

By Rinkesh Shah, founder of Cellgrids.

SQRT is an Excel Math & Trig function. Returns the square root of a number.

SQRT syntax

=SQRT(number)

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

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

What does the SQRT function do in Excel?

Returns the square root of a number.

What is the syntax of SQRT in Excel?

The syntax is =SQRT(number). number: A number to use in the calculation.

Where can I practice SQRT online for free?

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