U+2127 · Other symbol
HTML entity
℧
LaTeX
\mho
Inverted Ohm Sign Symbol ℧
℧ is inverted ohm sign, U+2127 — \mho in LaTeX. It was added in Unicode 1.1, and Unicode files it under Other symbol.
Also known as
- mho
Unicode 1.0 called this character mho. The standard renamed it later, but documents, fonts and font-editing tools from that era still use the old name.
What Unicode says about ℧
archaic unit of conductance (= the SI unit siemens)
typographically a turned greek capital letter omega
— annotation from the Unicode Standard, NamesList.txt
Codes & technical data
| Unicode | U+2127 | |
|---|---|---|
| HTML hex | ℧ | |
| HTML decimal | ℧ | |
| CSS | \2127 | |
| JavaScript | \u{2127} | |
| Python | \U00002127 | |
| Java / C# | \u2127 | |
| Rust | \u{2127} | |
| Swift | \u{2127} | |
| PHP | \u{2127} | |
| URL encoded | %E2%84%A7 | |
| UTF-8 bytes | E2 84 A7 | |
| UTF-16 bytes | 2127 | |
| Base64 | 4oSn | |
| Decimal | 8487 | |
| HTML entity | ℧ | |
| LaTeX | \mho | |
| Category | Other symbol (So) | |
| Introduced | Unicode 1.1 | |
Will ℧ survive being pasted?
- Normalisation. Yes. ℧ is unchanged by NFKC, so it survives normalising systems intact.
- Legacy encodings. ℧ is Unicode-only — it has no Latin-1 equivalent, so a system stuck on an 8-bit encoding cannot represent it.
- Size. 3 bytes in UTF-8. Character-limited fields — SMS, bios, some form validators — usually count bytes, not characters.
Unicode cross-references
The standard points readers of ℧ at these characters — usually because they look alike, or because one is the correct choice where the other is often used by mistake.
Nearby in Letterlike Symbols
Characters built out of letters but treated as symbols — ℃ ℉ №, the trademark and service marks, and the script and blackletter letters that mathematics uses as distinct variables. Most normalise back to plain letters, which is worth knowing before pasting one into a password field.
How to type ℧
| Windows | Type 2127 then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “inverted ohm sign” |
| Linux | Press Ctrl+Shift+U, type 2127, press Enter |
| HTML | ℧ |
About Unicode’s Other symbol category
Unicode files this under "other symbol" — the catch-all for pictographs, signs and marks that are neither maths, currency, nor letter-like. It is the largest symbol category in the standard.
Frequently asked questions
- How do I type the ℧ inverted ohm sign symbol?
- On Windows, type 2127 and press Alt+X. On Linux press Ctrl+Shift+U then 2127. On any system the quickest route is the copy button on this page.
- What is the code for ℧?
- Inverted Ohm Sign is U+2127, written in HTML as ℧ and in LaTeX as \mho. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ℧?
- Inverted Ohm Sign is filed under Other symbol in the Letterlike Symbols block, and was introduced in Unicode 1.1. Unicode files this under "other symbol" — the catch-all for pictographs, signs and marks that are neither maths, currency, nor letter-like. It is the largest symbol category in the standard.