Símbolo Más Menos (±)

El símbolo más menos ± es el carácter Unicode U+00B1. Pulsa Copiar para agregarlo a márgenes de tolerancia industrial, intervalos estadísticos y soluciones de ecuaciones cuadráticas.

Unicode
U+00B1
HTML
±
Windows
Alt + 0177
Mac
Option + Shift + =

How to type the símbolo más menos (±)

The quickest way is to press Copy above and paste. To type ± yourself, use the method for your device below. On Windows the alt code is Alt + 0177. On a Mac it is Option + Shift + =.

Windows

  1. Hold Alt and type 0177 on the numeric keypad, then release Alt. Num Lock must be on. This uses the Windows-1252 code page, so it works in almost every Windows app.
  2. Hold Alt and type 241 on the numeric keypad. This older code (from code page 437) works in Notepad, Word and most desktop apps.
  3. In Word or Outlook, type 00B1 and press Alt + X. Alt + X converts the hex code before the cursor into the character, and back again.
  4. Press Win + R, type charmap and press Enter. Tick “Advanced view”, search for Plus-Minus Sign, then Select and Copy. Character Map is built into every version of Windows.

Mac

  1. Press Option+Shift+=. On the standard US and US-International layouts.
  2. Press Control + Command + Space to open the Character Viewer, search for Plus-Minus Sign and double-click it.

Linux & ChromeOS

  1. Press Ctrl + Shift + U, type b1, then press Enter or Space. Works in GTK and IBus apps (GNOME, Firefox, Chrome, LibreOffice) and on ChromeOS.
  2. Press your Compose key, then + -. Needs a Compose key set in your keyboard settings.

iPhone & iPad

  1. Copy ± from this page, then go to Settings → General → Keyboard → Text Replacement and add it with a shortcut such as ;plus. The shortcut then turns into the symbol as you type, in every app.

Android

  1. Copy ± here, then open Gboard settings → Dictionary → Personal dictionary and add it with a shortcut.

Microsoft Word

  1. Type 00B1, then press Alt + X.
  2. Insert → Symbol → More Symbols. Set “from” to Unicode (hex), type 00B1 in “Character code” and click Insert.
  3. On a Mac, Option+Shift+= works in Word too.

Google Docs

  1. Insert → Special characters, then search for “plus-minus sign” or draw it in the box.

Excel & Google Sheets

  1. Enter =UNICHAR(177) in a cell. It works in Excel 2013 and later and in Google Sheets.

HTML

  1. Write ± or ± in your HTML.

What does ± mean?

El símbolo más menos ± tiene un doble propósito en matemáticas y ciencias experimentales. En álgebra indica la existencia de dos soluciones de signos opuestos, como en la célebre fórmula cuadrática. En física, química e ingeniería expresa el intervalo de incertidumbre o la tolerancia admisible de una medición empírica (por ejemplo, 100 ± 2 mm).

Su uso evita tener que escribir dos expresiones separadas, condensando la cota superior y la cota inferior en una única notación elegante. Es un elemento recurrente junto al signo de multiplicación, el signo de división y la colección de símbolos matemáticos disponibles en nuestro portal.

Símbolo Más Menos codes for HTML, CSS and programming

Every code below produces ±. Use the HTML entity in web pages, the CSS escape in content, and the escape sequence in source code.

Codes for ±
Unicode code pointU+00B1
HTML entity (named)±
HTML decimal±
HTML hex±
CSS contentcontent: "\B1";
JavaScript"\u00B1"
Python"\u00B1"
Python (by name)"\N{PLUS-MINUS SIGN}"
Java / C#"\u00B1"
LaTeX\pm
UTF-8 bytesC2 B1
UTF-1600B1
URL encoded%C2%B1
Windows Alt codeAlt + 0177
Alt code (CP437)Alt + 241
Mac shortcutOption + Shift + =

Symbols similar to ±

Click to copy, or open a symbol for its codes. See the full math symbols collection.

± character properties

Official Unicode name
PLUS-MINUS SIGN
Code point
U+00B1
Unicode block
Latin-1 Supplement (U+0080–U+00FF)
General category
Math symbol (Sm)
Added in
Unicode 1.1 (1993)
Plane
Basic Multilingual Plane (0)
Emoji
No, it is a text symbol

Preguntas frecuentes

¿Cuál es el código Alt para el signo más menos?

En Windows mantén presionado Alt y escribe 0177 (o Alt + 241) en el teclado numérico.

¿Cómo se escribe más menos en Mac?

En Mac presiona la combinación Option + Shift + =.

¿Qué significa este símbolo en informes de laboratorio?

Indica el margen de incertidumbre o error estimado en un instrumento de medición respecto a la media obtenida.

What is the alt code for the símbolo más menos?

On Windows, hold Alt and type 0177 on the numeric keypad to get ±. The shorter code Alt + 241 also works in most desktop apps. On a laptop without a keypad, copy it from this page or use 00B1 then Alt + X in Word.

How do I type the símbolo más menos on a Mac?

Press Option + Shift + =. It works in every app on the US keyboard layout. You can also open the Character Viewer with Control + Command + Space and search for it.

What is the HTML code for the símbolo más menos?

Use the named entity ± or the numeric reference ± (hex ±). All three display ± in every browser.

What is the Unicode for the símbolo más menos?

± is U+00B1, officially named PLUS-MINUS SIGN, in the Latin-1 Supplement block. It has been part of Unicode since version 1.1 (1993).