U+221F · Math symbol
HTML entity
∟
LaTeX
\rightangle
Right Angle Symbol ∟
∟ is right angle, U+221F. Unicode also records it as “with (in chess notation)”. It was added in Unicode 1.1, and Unicode files it under Math symbol.
Also known as
- with (in chess notation)
Codes & technical data
| Unicode | U+221F | |
|---|---|---|
| HTML hex | ∟ | |
| HTML decimal | ∟ | |
| CSS | \221F | |
| JavaScript | \u{221F} | |
| Python | \U0000221F | |
| Java / C# | \u221F | |
| Rust | \u{221f} | |
| Swift | \u{221F} | |
| PHP | \u{221F} | |
| URL encoded | %E2%88%9F | |
| UTF-8 bytes | E2 88 9F | |
| UTF-16 bytes | 221F | |
| Base64 | 4oif | |
| Decimal | 8735 | |
| HTML entity | ∟ | |
| LaTeX | \rightangle | |
| Category | Math symbol (Sm) | |
| 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.
Other angle characters
Unicode names 7 characters ending in “angle”. They differ by direction, weight or decoration rather than by meaning.
Nearby in Mathematical Operators
The operators mathematics and programming share — set theory, logic, calculus, comparison. Almost every character here has a LaTeX command, which is usually the fastest way to name the one you mean.
How to type ∟
| Windows | Type 221F then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “right angle” |
| Linux | Press Ctrl+Shift+U, type 221f, press Enter |
| HTML | ∟ |
About Unicode’s Math symbol category
Unicode classifies this as a mathematical symbol, which means software that lays out formulas treats it as an operator or relation and gives it spacing accordingly, rather than setting it tight against its neighbours like a letter.
Frequently asked questions
- How do I type the ∟ right angle symbol?
- On Windows, type 221F and press Alt+X. On Linux press Ctrl+Shift+U then 221f. On any system the quickest route is the copy button on this page.
- What is the code for ∟?
- Right Angle is U+221F, written in HTML as ∟ and in LaTeX as \rightangle. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ∟?
- Right Angle is filed under Math symbol in the Mathematical Operators block, and was introduced in Unicode 1.1. Unicode classifies this as a mathematical symbol, which means software that lays out formulas treats it as an operator or relation and gives it spacing accordingly, rather than setting it tight against its neighbours like a letter.