const.id

html-entity

±

±

±

HTML named character reference ± maps to U+00B1.

Mapping

Named reference
±
Code point(s)
U+00B1
Decimal
177
Characters
±

Numeric character references

Named
Decimal
Hex

Usage

Prefer a named reference when the character must survive encoding mistakes or is awkward to type. Numeric references (±) are always valid HTML for the mapped code point(s).

Related

Unicode

U+00B1

Same character

Other entities

Entities that produce this code point

Source

Unicode
16.0.0
WHATWG
snapshot 2026-08-02