ÿ
Latin small letter y with diaeresis
ExtendedASCII 255 | Hex 0xFF | U+00FF
ASCII Code
Decimal
255
Hexadecimal
0xFF
Octal
377
Binary
1111 1111
How to Type
Windows Alt CodeAlt + 255
HTML Entity
ÿ
Unicode InputU+00FF
Character in Different Encodings
| Encoding | Code | Symbol | Name |
|---|---|---|---|
| Code page 437 | 255 | NBSP | Non-breaking space |
| ISO-8859-1 | 255 | ÿ | Latin small letter y with diaeresis |
| ISO-8859-2 | 255 | ˙ | Dot above |
| ISO-8859-3 | 255 | ˙ | Dot above |
| ISO-8859-4 | 255 | ˙ | Dot above |
| ISO-8859-5 | 255 | џ | Cyrillic small letter Dzhe |
| ISO-8859-6 | 255 | - | Unused |
| ISO-8859-7 | 255 | - | Unused |
| ISO-8859-8 | 255 | - | Unused |
| ISO-8859-9 | 255 | ÿ | Latin small letter y with diaeresis |
| ISO-8859-10 | 255 | ĸ | Latin small letter kra |
| ISO-8859-11 | 255 | - | Unused |
| Windows-1250 | 255 | ˙ | Dot above |
| Windows-1251 | 255 | я | Cyrillic small letter ya |
| Windows-1252 | 255 | ÿ | Latin small letter y with diaeresis |
| Windows-1253 | 255 | - | Unused |
| Windows-1254 | 255 | ÿ | Latin small letter y with diaeresis |
| Windows-1255 | 255 | - | Unused |
| Windows-1256 | 255 | ے | Arabic letter Yeh Barree |
| Windows-1257 | 255 | ˙ | Dot above |
| Windows-1258 | 255 | ÿ | Latin small letter y with diaeresis |
Frequently Asked Questions
What is ASCII code 255?
ASCII code 255 represents the Latin small letter y with diaeresis character. In hexadecimal it is 0xFF, in binary 1111 1111, and in octal 377. This is an extended ASCII character whose meaning varies by encoding.
How do I type ASCII 255 on a keyboard?
On Windows, hold Alt and type 255 on the numeric keypad. On Mac, you can use the Character Viewer (Edit > Emoji & Symbols). In HTML, use the entity ÿ or ÿ.