U+1F109 Β· Other number
Digit Eight Comma Symbol π
π is digit eight comma, and Unicode gives it the numeric value 8. It was added in Unicode 5.2, and Unicode files it under Other number.
Codes & technical data
| Unicode | U+1F109 | |
|---|---|---|
| HTML hex | 🄉 | |
| HTML decimal | 🄉 | |
| CSS | \1F109 | |
| JavaScript | \u{1F109} | |
| Python | \U0001F109 | |
| Java / C# | \uD83C\uDD09 | |
| Rust | \u{1f109} | |
| Swift | \u{1F109} | |
| PHP | \u{1F109} | |
| URL encoded | %F0%9F%84%89 | |
| UTF-8 bytes | F0 9F 84 89 | |
| UTF-16 bytes | D83C DD09 | |
| Base64 | 8J+EiQ== | |
| Decimal | 127241 | |
| Decomposes to | 8, (compat form) | |
| Numeric value | 8 | |
| Category | Other number (No) | |
| Introduced | Unicode 5.2 | |
Will π survive being pasted?
- Normalisation. No. Anything that applies NFKC β search indexes, usernames, domain names, programming identifiers β rewrites π as
8,. Safe for display, not for storage. - Legacy encodings. π sits above U+FFFF, so it needs a surrogate pair in UTF-16. Software that counts characters by code unit will report it as two.
- Size. 4 bytes in UTF-8. Character-limited fields β SMS, bios, some form validators β usually count bytes, not characters.
Other comma characters
Unicode names 13 characters ending in βcommaβ. They differ by direction, weight or decoration rather than by meaning.
Nearby in Enclosed Alphanumeric Supplement
Letters and numbers in squares, circles and boxes beyond what the original enclosed block held, including the regional-indicator letters that flag emoji are assembled from.
How to type π
| Windows | Type 1F109 then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for βdigit eight commaβ |
| Linux | Press Ctrl+Shift+U, type 1f109, press Enter |
| HTML | 🄉 |
About Unicodeβs Other number category
This is classified as a number that is not a plain digit β 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 π digit eight comma symbol?
- On Windows, type 1F109 and press Alt+X. On Linux press Ctrl+Shift+U then 1f109. On any system the quickest route is the copy button on this page.
- What is the code for π?
- Digit Eight Comma is U+1F109. In UTF-8 it takes 4 bytes. The table above lists every escape format.
- Will π survive being pasted anywhere?
- Not always. Digit Eight Comma is a compatibility character: any system that applies Unicode NFKC normalisation β search indexes, usernames, identifiers β replaces it with 8,. Use it for display, not where text is normalised.