Diameter Sign vs Empty Set
Compare two Unicode characters side by side — encodings, HTML entities, escape sequences, and Unicode properties. Useful for distinguishing visually similar characters like hyphens and dashes, quotation marks, or homoglyphs.
Property Comparison
| Property | Diameter Sign | Empty Set |
|---|---|---|
| Codepoint |
U+2300
|
U+2205
|
| Decimal |
8960
|
8709
|
| HTML Entity |
⌀
|
∅
|
| HTML Decimal |
⌀
|
∅
|
| HTML Hex |
⌀
|
∅
|
| UTF-8 |
E2 8C 80
|
E2 88 85
|
| UTF-16 |
23 00
|
22 05
|
| UTF-32 |
00002300
|
00002205
|
| CSS Escape |
\2300
|
\2205
|
| JS Escape |
\u2300
|
\u2205
|
| Python Escape |
\u2300
|
\u2205
|
| URL Encoded |
%E2%8C%80
|
%E2%88%85
|
| Category |
Other Symbol (So)
|
Math Symbol (Sm)
|
| Block |
Miscellaneous Technical
|
Mathematical Operators
|
| Script |
Common
|
Common
|
| Bidi Class |
ON
|
ON
|
| Unicode Version |
1.1
|
1.1
|
Rows highlighted in amber differ between the two characters.
Common Comparisons
Frequently confused character pairs.
Em Dash vs En Dash
2014 / 2013
Hyphen-Minus vs Minus Sign
002D / 2212
Copyright vs Sound Recording Copyright
00A9 / 2117
Latin A vs Greek Alpha
0041 / 0391
Degree Sign vs Masculine Ordinal
00B0 / 00BA
Left vs Right Single Quotation Mark
2018 / 2019
Left vs Right Double Quotation Mark
201C / 201D
Multiplication Sign vs Letter x
00D7 / 0078
Right Quotation Mark vs Apostrophe
2019 / 0027
Horizontal Ellipsis vs Three Dots
2026 / 0020