√
U+221A SQUARE ROOT
Mathematical Operators · Math symbol
| Name | SQUARE ROOT |
|---|---|
| Code point | U+221A |
| Decimal | 8730 |
| Block | Mathematical Operators |
| Category | Math symbol (Sm) |
| UTF-8 | E2 88 9A |
| UTF-16 | 221A |
| UTF-32 | 0000221A |
| HTML | √ √ √ |
| CSS | \221A |
| JavaScript | \u221A |
| Python | \u221a |
| URL-encoded | %E2%88%9A |
Frequently asked questions
What is the character U+221A?
U+221A √ is officially named SQUARE ROOT. It belongs to the Mathematical Operators block and the category Math symbol.
How do I type √?
Windows (Word, WordPad): type 221A, then press Alt+X. Linux (GTK/IBus): Ctrl+Shift+U 221a, then Space. macOS: enable the “Unicode Hex Input” keyboard, hold Option and type 221A. Or simply copy it from this page.
How do I write √ in HTML?
As a numeric character reference √ (decimal) or √ (hexadecimal). In UTF-8 documents you can also insert the character directly. There is also the named entity √.
How is √ encoded in UTF-8?
In UTF-8 the character takes 3 bytes: E2 88 9A. In UTF-16: 221A.