To type ±: HTML ± · CSS \00b1 · or copy it from the key above.
01 Every way to type it
Every input method verified against an authoritative source — no invented Alt codes.
| Platform | Input | |
|---|---|---|
| HTML entity | ± | |
| CSS content | \00b1 | |
| Linux (IBus) | Ctrl+Shift+U then 00b1 |
02 Type it yourself
Paste or type here to check it renders in your own font before you use it.
03 Technical details
Encoding and reference data for Plus-minus Sign, derived straight from the Unicode standard.
| Code point | U+00B1 |
| Decimal | 177 |
| Category | Symbol, math |
| Unicode version | 1.1 |
| UTF-8 | C2 B1 |
| UTF-16 | 00B1 |
| HTML entity | ± ± |
| CSS | \b1 |
| URL-encoded | %C2%B1 |
04 FAQ
What is ±?
± is “Plus-minus Sign”, Unicode character U+B1. Tap the key near the top of this page to copy it, then paste it anywhere that accepts Unicode text.
How do I type ±?
Every method — Windows, Mac, HTML and CSS — is listed in the table above. The quickest option is to tap the key above to copy ± straight to your clipboard.
What is the HTML or CSS code for ±?
In HTML use ± (decimal) or ± (hexadecimal). In a CSS content property use \b1.
05 Related & confusable characters
Programmatically linked from the Unicode data.
06 People also type
Guides that cover this character alongside others like it.