π is the Unicode emoji BATTERY, code point U+1F50B (decimal 128267) in the Miscellaneous Symbols and Pictographs block, added in Unicode 6.0. In HTML write 🔋, and in UTF-8 it is the 4 bytes F0 9F 94 8B.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F50B |
| Decimal | 128267 |
| UTF-8 bytes | F0 9F 94 8B |
| UTF-16 (big-endian) | D83D DD0B |
| UTF-32 | 0001F50B |
| HTML decimal | 🔋 |
| HTML hex | 🔋 |
| CSS | \1F50B |
| JavaScript | \u{1F50B} or \uD83D\uDD0B |
| JSON | \uD83D\uDD0B |
| Python | \U0001F50B |
| Python by name | \N{BATTERY} |
| Java, C# | \uD83D\uDD0B |
| Rust, Swift | \u{1F50B} |
| Go, C, C++ | \U0001F50B |
| URL (percent-encoded) | %F0%9F%94%8B |
JavaScript and JSON strings store text as UTF-16, so this character takes two code units (a surrogate pair) and "π".length is 2. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | BATTERY |
| Emoji name | battery |
| Code point | U+1F50B (decimal 128267) |
| Block | Miscellaneous Symbols and Pictographs (U+1F300βU+1F5FF) |
| General category | So: Other symbol |
| Script | Common |
| Bidirectional class | ON: Other neutral |
| Mirrored in right-to-left text | No |
| First in Unicode version | 6.0 |
Nearby in Miscellaneous Symbols and Pictographs
- π U+1F503 Clockwise vertical arrows
- π U+1F504 Counterclockwise arrows button
- π U+1F505 Dim button
- π U+1F506 Bright button
- π U+1F507 Muted speaker
- π U+1F508 Speaker low volume
- π U+1F509 Speaker medium volume
- π U+1F50A Speaker high volume
- π U+1F50C Electric plug
- π U+1F50D Magnifying glass tilted left
- π U+1F50E Magnifying glass tilted right
- π U+1F50F Locked with pen
- π U+1F510 Locked with key
- π U+1F511 Key
- π U+1F512 Locked
- π U+1F513 Unlocked
All 768 characters: Miscellaneous Symbols and Pictographs.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 🔋 (decimal) or 🔋 (hex).
- What is the UTF-8 encoding of U+1F50B?
- F0 9F 94 8B (hex), 4 bytes. In a URL it is %F0%9F%94%8B.
- How do I write U+1F50B in JavaScript or Python?
- JavaScript: \u{1F50B} or \uD83D\uDD0B. Python: \U0001F50B.
Source
Unicode Character Database 18.0.0 (Unicode License v3) and the Unicode emoji test data; HTML entity names from the WHATWG HTML Standard (CC BY 4.0). The encodings above are computed from the code point and checked against Python's encoders. How the character looks depends on your fonts.
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