U+2499 · Other number
Number Eighteen Full Stop Symbol ⒙
⒙ is number eighteen full stop, U+2499. Unicode records it as a compatibility form of 18. (compat form). It was added in Unicode 1.1, and Unicode files it under Other number.
Also known as
Unicode 1.0 called this character number eighteen period. The standard renamed it later, but documents, fonts and font-editing tools from that era still use the old name.
Codes & technical data
| Unicode | U+2499 | |
|---|---|---|
| HTML hex | ⒙ | |
| HTML decimal | ⒙ | |
| CSS | \2499 | |
| JavaScript | \u{2499} | |
| Python | \U00002499 | |
| Java / C# | \u2499 | |
| Rust | \u{2499} | |
| Swift | \u{2499} | |
| PHP | \u{2499} | |
| URL encoded | %E2%92%99 | |
| UTF-8 bytes | E2 92 99 | |
| UTF-16 bytes | 2499 | |
| Base64 | 4pKZ | |
| Decimal | 9369 | |
| Decomposes to | 18. (compat form) | |
| Numeric value | 18 | |
| Category | Other number (No) | |
| Introduced | Unicode 1.1 | |
Will ⒙ survive being pasted?
- Normalisation. No. Anything that applies NFKC — search indexes, usernames, domain names, programming identifiers — rewrites ⒙ as
18.. Safe for display, not for storage. - Legacy encodings. ⒙ 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.
Other stop characters
Unicode names 24 characters ending in “stop”. They differ by direction, weight or decoration rather than by meaning.
Nearby in Enclosed Alphanumerics
Letters and digits inside circles, parentheses and full stops. Widely used for numbered lists in plain text, though NFKC normalisation strips the enclosure and leaves the bare character.
How to type ⒙
| Windows | Type 2499 then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “number eighteen full stop” |
| Linux | Press Ctrl+Shift+U, type 2499, press Enter |
| HTML | ⒙ |
About Unicode’s Other number category
This is classified as a number that is not a plain digit — a fraction, a superscript figure, a circled or bracketed numeral. Software will not parse it as a number without being told to.
Frequently asked questions
- How do I type the ⒙ number eighteen full stop symbol?
- On Windows, type 2499 and press Alt+X. On Linux press Ctrl+Shift+U then 2499. On any system the quickest route is the copy button on this page.
- What is the code for ⒙?
- Number Eighteen Full Stop is U+2499. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- Will ⒙ survive being pasted anywhere?
- Not always. Number Eighteen Full Stop is a compatibility character: any system that applies Unicode NFKC normalisation — search indexes, usernames, identifiers — replaces it with 18.. Use it for display, not where text is normalised.