±
ASCII 177
ASCII Character
Plus-Minus Sign
ASCII byte 177 (0xB1) — Unicode U+00B1. Standard ASCII is 0–127; extended bytes 128–255 use Windows-1252.
How to type ±
Windows
- Copy ± with the Copy Symbol button above and paste it anywhere.
- In HTML, use ± or hex ±.
- In JavaScript, use String.fromCharCode(177).
- You can also type this character with a Windows Alt Code (U+00B1).
Mac
- Copy ± with the Copy Symbol button and paste it (fastest method).
- Open System Settings → Keyboard → Input Sources and add Unicode Hex Input (if needed).
- Select Unicode Hex Input from the menu bar input menu.
- Hold Option (⌥), type 00B1 (from U+00B1), then release Option.
- Or open Edit → Emoji & Symbols (or press Ctrl + Cmd + Space) and search for the character.
- In HTML on Mac editors, you can also paste ±.
Linux
- Copy ± with the Copy Symbol button and paste it.
- Press Ctrl + Shift + U, type 00b1 (from U+00B1), then press Enter or Space.
- On GNOME, you can also use Ctrl + . (or Ctrl + ;) to open the character picker.
- In HTML, use ±.
ASCII character details
| Parameter | Value | Copy |
|---|---|---|
| Symbol |
±
|
|
| Symbol Name |
Plus-Minus Sign
|
— |
| ASCII Decimal |
177
|
|
| ASCII Hex |
0xB1
|
|
| Unicode Code |
U+00B1
|
|
| HTML Decimal Code |
±
|
|
| HTML Hex Code |
±
|
|
| HTML Entity |
±
|
|
| CSS Code |
\00B1
|
|
| JavaScript Code |
\u00B1
|
|
| Category |
ASCII Extended / Windows-1252 (128–255)
|
— |
| Windows Alt Code | View Alt Code | — |
FAQs about Plus-Minus Sign ASCII Code Symbol
What is the ASCII code for Plus-Minus Sign ASCII Code Symbol?
ASCII decimal 177, hex 0xB1, Unicode U+00B1.
How do I copy ±?
Click Copy Symbol on this page to copy the character directly.
How do I type ASCII 177 in JavaScript?
Use String.fromCharCode(177) to output this character in JavaScript.
Does ASCII 177 have an Alt Code?
This character may also be typed with a Windows Alt Code — view details.
About this ASCII Character
Extended ASCII byte 177 (0xB1, U+00B1) is plus-minus sign. Part of the complete extended ASCII table (Windows-1252, 128–255).
Tags: plus-minus-sign,ascii,extended-ascii,177,0xB1,U+00B1,ascii table,copy symbol