±
U+00B1 PLUS-MINUS SIGN
Latin-1 Supplement · Math symbol
| Name | PLUS-MINUS SIGN |
|---|---|
| Code point | U+00B1 |
| Decimal | 177 |
| Block | Latin-1 Supplement |
| Category | Math symbol (Sm) |
| UTF-8 | C2 B1 |
| UTF-16 | 00B1 |
| UTF-32 | 000000B1 |
| HTML | ± ± ± |
| CSS | \00B1 |
| JavaScript | \u00B1 |
| Python | \u00b1 |
| URL-encoded | %C2%B1 |
Frequently asked questions
What is the character U+00B1?
U+00B1 ± is officially named PLUS-MINUS SIGN. It belongs to the Latin-1 Supplement block and the category Math symbol.
How do I type ±?
Windows (Word, WordPad): type 00B1, then press Alt+X. Linux (GTK/IBus): Ctrl+Shift+U 00b1, then Space. macOS: enable the “Unicode Hex Input” keyboard, hold Option and type 00B1. Or simply copy it from this page. On Windows, Alt+0177 on the numeric keypad also works.
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 2 bytes: C2 B1. In UTF-16: 00B1.