Probably the "Regional and Language Options" control panel offers you all
that can be easily done.
I'm running the US English version of XP, and the only choices of units are
US ("English") and metric. (My only encounters with Imperial units were in
the 60's, as gasoline was still sold by the Imperial gallon in Canada at the
time.) Perhaps other versions of the OS offer different choices.
HTH.
Bob Knowlden
Address may be altered to avoid spam. Replace nkbob with bobkn.