U+2126 OHM SIGN

The Unicode character U+2126, officially named OHM SIGN, was introduced in Unicode version 1.1. It is part of the Letterlike Symbols block, which belongs to the Basic Multilingual plane. Previously, it was also referred to as OHM.

Categorized technically as a Uppercase Letter, this character typically falls under the Greek script. In terms of text layout and rendering, the glyph is a canonical composition and has ambiguous in East Asian typography. When placed in bidirectional text, it behaves as an Left-To-Right character. Its visual representation remains not mirrored regardless of the reading direction.