U+00B1
Plus minus±
Plus minus is a monochrome text character from the Unicode Latin-1 Supplement block, listed here under Math. Copy it with one click, or use the hex, octal, decimal and HTML entity codes below to embed it in web pages, code, and documents. It is often searched for as "plusminus", "tolerance".
Quick facts
- Unicode
- U+00B1
- Decimal
- 177
- Hex
- 0x00B1
- Octal
- 0o261
Unicode identity
| Format | Value | Copy |
|---|---|---|
| Code pointOfficial Unicode notation | U+00B1 | |
| Official nameUnicodeData.txt, Unicode 18.0.0 | PLUS-MINUS SIGN | |
| Unicode 1.0 nameLegacy alias | PLUS-OR-MINUS SIGN | |
| DecimalBase 10 | 177 | |
| HexadecimalBase 16 | 0x00B1 | |
| OctalBase 8 | 0o261 | |
| BinaryBase 2 | 0000000010110001 | |
| General categorySymbol, math | Sm | |
| Unicode blockU+0080–U+00FF | Latin-1 Supplement | |
| Plane | Basic Multilingual Plane (BMP, Plane 0) |
HTML & CSS
| Format | Value | Copy |
|---|---|---|
| HTML entity (decimal) | ± | |
| HTML entity (hex) | ± | |
| HTML entity (named) | ± | |
| CSS content escapeUse inside content: "…" | \00B1 | |
| URL encodedPercent-encoded UTF-8 | %C2%B1 |
Programming languages
| Format | Value | Copy |
|---|---|---|
| JavaScript / TypeScript | \u00B1 | |
| JSONUTF-16 surrogate pairs | \u00B1 | |
| Python | \u00B1 | |
| Java / C# / Kotlin | \u00B1 |
Byte encodings
| Format | Value | Copy |
|---|---|---|
| UTF-82 bytes | C2 B1 | |
| UTF-16 (BE) | 00B1 | |
| UTF-32 (BE) | 000000B1 |
How to type Plus minus
Windows
Hold Alt and type +B1 with the hex numeric keypad option enabled, or type B1 then press Alt+X in Word and most Office apps.
macOS
Enable the Unicode Hex Input keyboard, hold Option, and type 00B1. Or open Character Viewer (Control+Command+Space) and search "Plus minus".
Linux
Press Ctrl+Shift+U, type b1, then press Space or Enter in GTK apps. IBus and most terminals support the same sequence.
HTML, CSS & code
Paste the character directly, or use the escapes above: ± in HTML, \00B1 in CSS, and \u00B1 in JavaScript.
Official Unicode reference
- Character name
- PLUS-MINUS SIGN
- Unicode 1.0 name
- PLUS-OR-MINUS SIGN
- Block
- Latin-1 Supplement (U+0080–U+00FF)
- General category
- Sm — Symbol, math
Data from the Unicode Character Database, version 18.0.0. See the official code chart for the Latin-1 Supplement block: U0080.pdf (PDF, unicode.org).
Frequently asked questions
How do I copy the Plus minus symbol?
Click the Copy button at the top of this page, or select ± and press Ctrl+C (Cmd+C on Mac). It is plain Unicode text, so it pastes into documents, chats, code, and design tools.
What is the Unicode code point for Plus minus?
Plus minus is U+00B1 (decimal 177, hexadecimal 0x00B1, octal 0o261). It lives in the Latin-1 Supplement block (U+0080–U+00FF) of the Basic Multilingual Plane (BMP, Plane 0).
What is the official Unicode name of Plus minus?
The Unicode Standard (version 18.0.0) names this character "PLUS-MINUS SIGN"; its Unicode 1.0 name was "PLUS-OR-MINUS SIGN". Its General_Category is Sm (Symbol, math).
What is the HTML code for Plus minus?
Use ± or ±, or the named entity ±. In CSS, use content: "\00B1".
How do I type Plus minus in code?
JavaScript: "\u00B1". Python: "\u00B1". JSON and Java: "\u00B1". The UTF-8 byte sequence is C2 B1.
Is Plus minus an emoji?
No. Plus minus is a text symbol and renders as a monochrome glyph in the current font. Some platforms may offer an emoji variant when U+FE0F is appended.