There are
916 mi
from Hempstead, NY to Pewaukee, WI
That's the driving distance. It would take 17 hours 21 mins to go from Hempstead, New York to Pewaukee, Wisconsin.
The flight distance (direct flight from Hempstead, NY to Pewaukee, WI) is 767.23 mi.
916 mi = 1,473.37 kms