Here's a table that shows special characters and the Numerical Character Reference codes used to represent them in XHTML.
| Description | Decimal code | Browser version |
|---|---|---|
| quotation mark (straight double quote) |
" |
" |
| hash (US "pound sign") |
# |
# |
| ampersand |
& |
& |
| apostrophe (straight single quote) |
' |
' |
| less-than sign |
< |
< |
| greater-than sign |
> |
> |
| non-breaking space |
  |
|
| inverted exclamation |
¡ |
¡ |
| hash symbol |
# |
# |
| back slash |
\ |
\ |
| (forward) slash |
/ |
/ |
| cent sign |
¢ |
¢ |
| pound sterling |
£ |
£ |
| general currency sign |
¤ |
¤ |
| yen sign |
¥ |
¥ |
| broken vertical bar |
¦ |
¦ |
| section sign |
§ |
§ |
| umlaut(dieresis) |
¨ |
¨ |
| copyright |
© |
© |
| feminineordinal |
ª |
ª |
| left angle quote, guillemotleft |
« |
« |
| not sign |
¬ |
¬ |
| registered trademark |
® |
® |
| macron accent |
¯ |
¯ |
| degree sign |
° |
° |
| plus or minus |
± |
± |
| superscript two |
² |
² |
| superscript three |
³ |
³ |
| acute accent |
´ |
´ |
| micro sign (Mu) |
µ |
µ |
| paragraph sign |
¶ |
¶ |
| middle dot |
· |
· |
| cedilla |
¸ |
¸ |
| superscript one |
¹ |
¹ |
| masculine ordinal |
º |
º |
| right angle quote, guillemotright |
» |
» |
| fraction one-fourth |
¼ |
¼ |
| fraction one-half |
½ |
½ |
| fraction three-fourths |
¾ |
¾ |
| inverted question mark |
¿ |
¿ |
| capital A, grave accent |
À |
À |
| capital A, acute accent |
Á |
Á |
| capital A, circumflex accent |
 |
 |
| capital A, tilde |
à |
à |
| capital A, dieresis or umlaut mark |
Ä |
Ä |
| capital A, ring (Angstrom) |
Å |
Å |
| capital AE diphthong (ligature) |
Æ |
Æ |
| capital C, cedilla |
Ç |
Ç |
| capital E, grave accent |
È |
È |
| capital E, acute accent |
É |
É |
| capital E, circumflex accent |
Ê |
Ê |
| capital E, dieresis or umlaut mark |
Ë |
Ë |
| capital I, grave accent |
Ì |
Ì |
| capital I, acute accent |
Í |
Í |
| capital I, circumflex accent |
Î |
Î |
| capital I, dieresis or umlaut mark |
Ï |
Ï |
| capital Eth, Icelandic |
Ð |
Ð |
| capital N, tilde |
Ñ |
Ñ |
| capital O, grave accent |
Ò |
Ò |
| capital O, acute accent |
Ó |
Ó |
| capital O, circumflex accent |
Ô |
Ô |
| capital O, tilde |
Õ |
Õ |
| capital O, dieresis or umlaut mark |
Ö |
Ö |
| multiply sign |
× |
× |
| capital O, slash |
Ø |
Ø |
| capital U, grave accent |
Ù |
Ù |
| capital U, acute accent |
Ú |
Ú |
| capital U, circumflex accent |
Û |
Û |
| capital U, dieresis or umlaut mark |
Ü |
Ü |
| capital Y, acute accent |
Ý |
Ý |
| capital THORN, Icelandic |
Þ |
Þ |
| small sharp s, German (sz ligature) |
ß |
ß |
| small a, grave accent |
à |
à |
| small a, acute accent |
á |
á |
| small a, circumflex accent |
â |
â |
| small a, tilde |
ã |
ã |
| small a, dieresis or umlaut mark |
ä |
ä |
| small a, ring |
å |
å |
| small ae diphthong (ligature) |
æ |
æ |
| small c, cedilla |
ç |
ç |
| small e, grave accent |
è |
è |
| small e, acute accent |
é |
é |
| small e, circumflex accent |
ê |
ê |
| small e, dieresis or umlaut mark |
ë |
ë |
| small i, grave accent |
ì |
ì |
| small i, acute accent |
í |
í |
| small i, circumflex accent |
î |
î |
| small i, dieresis or umlaut mark |
ï |
ï |
| small eth, Icelandic |
ð |
ð |
| small n, tilde |
ñ |
ñ |
| small o, grave accent |
ò |
ò |
| small o, acute accent |
ó |
ó |
| small o, circumflex accent |
ô |
ô |
| small o, tilde |
õ |
õ |
| small o, dieresis or umlaut mark |
ö |
ö |
| division sign |
÷ |
÷ |
| small o, slash |
ø |
ø |
| small u, grave accent |
ù |
ù |
| small u, acute accent |
ú |
ú |
| small u, circumflex accent |
û |
û |
| small u, dieresis or umlaut mark |
ü |
ü |
| small y, acute accent |
ý |
ý |
| small thorn, Icelandic |
þ |
þ |
| small y, dieresis or umlaut mark |
ÿ |
ÿ |
| en dash |
– |
– |
| trade mark symbol |
™ |
™ |
| euro symbol |
€ |
€ |