U+00B1
| OS | Layout | Shortcut |
|---|---|---|
| Windows(you) | Us | AltGr + = |
| Windows | Uk | AltGr + + |
| Windows | German | AltGr + + |
| macOS | Us | Option + Shift + = |
| macOS | Uk | Option + + |
| macOS | German | Option + + |
| Application | How to insert Plus-Minus Sign |
|---|---|
| Windows (any app) | Hold Alt and type 0177 on the numeric keypad |
| Microsoft Word | Type 00B1, then press Alt+X |
| Excel / Google Sheets | Use the formula =UNICHAR(177) |
| Google Docs | Insert → Special characters, then search "plus-minus sign" |
| HTML | ± or ± |
| CSS (content property) | content: "\00B1" |
| JavaScript | "\u00B1" |
The plus-minus sign indicates that a value can be either positive or negative, or represents a margin of error.
Used in mathematics for roots of equations (x = ±5), in science for measurement tolerances (25°C ± 2°), and in statistics for confidence intervals.