Windows
2 options- In Word / Outlook: type 221A then press Alt + X.
- Anywhere: press Win + . to open the emoji & symbol picker, then search.
Square Root Symbol
A symbol from the Math Symbols collection. Click the symbol or the button below to copy.
- Symbol
- √
- Unicode
- U+221A
- HTML entity
- √
- Category
- Math Symbols
Export
Download Square Root as SVG or PNG — or add a caption to make a labelled icon, badge or sticker.
Background
Previewtransparent background
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22 of 96 in the math symbols collection
About the square root symbol
The square-root symbol belongs to the Mathematical Operators block and is classified as a math symbol used across many writing systems. It denotes the principal square root of a number—the value that, when multiplied by itself, yields the given number—and is a standard notation in algebra, geometry, and most branches of mathematics.
In practice, this character appears in textbooks, scientific papers, and digital math environments, including word processors and formula editors. It is distinct from the radical sign used in other root expressions (such as cube roots), though it shares the same graphical form as the beginning of those extended radicals.
How to type Square Root
Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.
macOS
2 options- Press Option + V on a US keyboard.
- Or: Control + Command + Space opens the Character Viewer.
Linux
1 step- Press Ctrl + Shift + U, type 221A, then press Enter or Space.
Copy in every format
Every form of this character — for HTML, CSS, JavaScript, URLs and more. Click any value to copy.
Related math symbols
Other math symbols you can copy and paste — explore similar Unicode characters from the same family.
- +Plus SignCopy the plus sign symbol→
- −Minus SignCopy the minus sign symbol→
- ×Multiplication SignCopy the multiplication sign symbol→
- ÷Division SignCopy the division sign symbol→
- ±Plus-Minus SignCopy the plus-minus sign symbol→
- ∓Minus-Or-Plus SignCopy the minus-or-plus sign symbol→
- =Equals SignCopy the equals sign symbol→
- ≠Not Equal ToCopy the not equal to symbol→
- ≈Almost Equal ToCopy the almost equal to symbol→
- ≡Identical ToCopy the identical to symbol→
- ≤Less-Than Or Equal ToCopy the less-than or equal to symbol→
- ≥Greater-Than Or Equal ToCopy the greater-than or equal to symbol→
Explore related collections
Browse other symbol families that pair well with math symbols.