Inverted Ohm Sign
Part of Math Symbols
Inverted Ohm Sign has no standard Windows Alt code. Copy the character directly, or use its HTML entity or Unicode value instead.
- Alt code
- None
- HTML entity
- ℧
- Unicode
- U+2127
About this symbol
℧ is the mho, ohm spelt backwards and drawn as an upside-down omega, the old unit of electrical conductance, the opposite of resistance. In 1971 the international system of units replaced it with the siemens, S, though the mho still turns up in older textbooks.
Unicode facts
- Official name
- INVERTED OHM SIGN
- Also called
- Mho
- Type
- Symbol
- Unicode block
- Letterlike Symbols
- Added in
- Unicode 1.1 (1993)
- Unicode notes
- Archaic unit of conductance (= the SI unit siemens)
- Typographically a turned greek capital letter omega
Click the symbol or any value at the top of the page to copy it. See the full Math Symbols chart for related characters.