µ
Micro sign
ExtendedASCII 181 | Hex 0xB5 | U+00B5
ASCII Code
Decimal
181
Hexadecimal
0xB5
Octal
265
Binary
1011 0101
How to Type
Windows Alt CodeAlt + 181
HTML Entity
µ
Unicode InputU+00B5
Character in Different Encodings
| Encoding | Code | Symbol | Name |
|---|---|---|---|
| Code page 437 | 181 | ╡ | Box drawings vertical single and left double |
| ISO-8859-1 | 181 | µ | Micro sign |
| ISO-8859-2 | 181 | ľ | Latin small letter l with caron |
| ISO-8859-3 | 181 | µ | Micro sign |
| ISO-8859-4 | 181 | ĩ | Latin small letter i with tilde |
| ISO-8859-5 | 181 | Е | Cyrillic capital letter Ie |
| ISO-8859-6 | 181 | - | Unused |
| ISO-8859-7 | 181 | ΅ | Greek dialytika tonos |
| ISO-8859-8 | 181 | µ | Micro sign |
| ISO-8859-9 | 181 | µ | Micro sign |
| ISO-8859-10 | 181 | ĩ | Latin small letter i with tilde |
| ISO-8859-11 | 181 | ต | Thai character to Tao |
| Windows-1250 | 181 | µ | Micro sign |
| Windows-1251 | 181 | µ | Micro sign |
| Windows-1252 | 181 | µ | Micro sign |
| Windows-1253 | 181 | µ | Micro sign |
| Windows-1254 | 181 | µ | Micro sign |
| Windows-1255 | 181 | µ | Micro sign |
| Windows-1256 | 181 | µ | Micro sign |
| Windows-1257 | 181 | µ | Micro sign |
| Windows-1258 | 181 | µ | Micro sign |
Frequently Asked Questions
What is ASCII code 181?
ASCII code 181 represents the Micro sign character. In hexadecimal it is 0xB5, in binary 1011 0101, and in octal 265. This is an extended ASCII character whose meaning varies by encoding.
How do I type ASCII 181 on a keyboard?
On Windows, hold Alt and type 181 on the numeric keypad. On Mac, you can use the Character Viewer (Edit > Emoji & Symbols). In HTML, use the entity µ or µ.