This article is from the Macintosh system software FAQ, by Elliotte Harold email@example.com with numerous contributions by others.
Chris Reed's $10 shareware TTConverter 1.5 will convert back
and forth between Windows and Macintosh TrueType fonts. See
The payware programs FontMonger ($95 street) and MetaMorphosis
($89 street) convert between all types of TrueType and PostScript
fonts. On the PC side the REFONT program available from
will convert Macintosh Truetype fonts to PC TrueType fonts and
vice-versa. It also converts Macintosh PostScript fonts to PC
PostScript fonts and vice-versa. It will not, however, convert
between PostScript fonts and TrueType fonts.