How to Get the Square Root Symbol in Word

Learn how to insert mathematical operators such as the square root symbol in a Microsoft Word document.

Add a square root symbol — also known as a radical sign — to a Microsoft Word document by using the program's AutoCorrect feature, inserting a symbol or typing an Alt code.

Type an AutoCorrect Keyword

Word, like all other Microsoft Office programs, comes with a spell checker called AutoCorrect. In addition to checking for typos, AutoCorrect can also turn a series of predefined keywords into math symbols. For example, insert a square root symbol in Word by typing \sqrt in the document, followed by a space. Upon pressing the space bar, Word automatically turns \sqrt into a square root symbol.

Tip

• If your default font does not include the square root symbol, switch to the Cambria Math font before inserting the root square symbol by selecting Cambria Math from the Font drop-down menu in the Ribbon's Home tab.

• AutoCorrect keywords are case-sensitive.

• By default, AutoCorrect only recognizes math keywords when typed inside an equation. To insert a math symbol such as a radical sign outside of an equation, open the File tab and click Options. Select Proofing from the sidebar and click the AutoCorrect Options button. Tick the check box next to Use Math AutoCorrect rules outside of math regions.

Insert a Square Root Symbol

Step 1

Open the Insert tab and click the Symbol button. Select More Symbols.

Type an Alt Code

By typing specific codes known as Alt Codes on your keypad, you can insert mathematical symbols into your Office documents.

Tip

• You can only use Alt codes for mathematical symbols in Office applications.

• If your computer does not have a keypad, you cannot type Alt codes.

Step 1

Press the Alt key and hold it down.