Below is the Alt code keyboard shortcut for inserting the diameter sign. If you are new to ALT codes and need detailed instructions on how to use them, please read How to Use ALT Codes to Enter Special Characters. For the the complete list of the ASCII based Windows ALT Codes, refer to Windows ALT Codes for Special Characters & Symbols.
| Symbol | ⌀ |
| Symbol Name | Diameter sign |
| Windows Alt Code | ALT 8960 |
| Windows Alt X Code | 2300 ALT X |
| Mac Option Key Shortcut | n/a |
| HTML Entity Named Character Reference | n/a |
| HTML Entity Numeric Character Reference (Hexadecimal) | ⌀ |
| HTML Entity Numeric Character Reference (Decimal) | ⌀ |
| Unicode Code Point | U+2300 |
The diameter sign ⌀ is not to be confused with the following similar-looking characters or symbols:
Ø Latin capital letter O with stroke, slashed O (ALT 0216)
ø Latin small letter o with stroke, slashed o (ALT 0248)
∅ Empty set (ALT 8709)
Published on November 20, 2018 · Last Updated on July 7, 2022
