How about using the ISO 8859-1 character set overview or the ISO 8859-1 Characters List and do it directly with HTML?

Char  Decimal   Hex      Entity
--------------------------------
à     224       e0       à
á     225       e1       á
â     226       e2       â
ã     227       e3       ã
ä     228       e4       ä
å     229       e5       å
æ     230       e6       æ

...and so on.