There are
433 mi
from Parma, OH to Wauwatosa, WI
That's the driving distance. It would take 8 hours 17 mins to go from Parma, Ohio to Wauwatosa, Wisconsin.
The flight distance (direct flight from Parma, OH to Wauwatosa, WI) is 340.93 mi.
433 mi = 696.55 kms