There are
81 mi
from Mt Prospect, IL to Wauwatosa, WI
That's the driving distance. It would take 1 hour 41 mins to go from Mt Prospect, Illinois to Wauwatosa, Wisconsin.
The flight distance (direct flight from Mt Prospect, IL to Wauwatosa, WI) is 68.02 mi.
81 mi = 130.29 kms