Unicode Character "±" (U+00B1)

The character ± (Plus-Minus Sign) is represented by the Unicode codepoint U+00B1. It is encoded in the Latin-1 Supplement block, which belongs to the Basic Multilingual Plane. It was added to Unicode in version 1.1 (June, 1993). It is HTML encoded as ±.

Main Unicode Properties

Name Plus-Minus Sign
Unicode Codepoint U+00B1
Unicode Version 1.1 (June, 1993)
Block Latin-1 Supplement
Plane Basic Multilingual Plane

Bidirectional Data

Bidirectional class European Terminator (ET)
Is mirrored? No

Other Unicode Data

Category Math Symbol
Script Code for undetermined script
Combining Class Not Reordered

U+00B1 Conversion

HTML (decimal) ±
HTML (hex) ±
HTML (named) ±
URL Escape Code %C2%B1
CSS \0000B1
JavaScript, JSON \u00B1
C, C++, Java \u00B1
Python \u00B1
Rust \u{00B1}
Ruby \u00B1

How to type "±"

  • Windows ?: Hold Alt, then type 0 0 B 1. Release Alt.
  • Mac ?: Hold Alt ⌥, then type 0 0 B 1. Release Alt.


  • ±
    Times, Times New Roman, serif
  • ±
    Helvetica, Arial, sans-serif
  • ±
    Courier, Courier New, monospace

UTF Encodings

UTF-8 (hex) 0xC2 0xB1
UTF-16 (hex) 0x00B1
UTF-32 (hex) 0x000000B1