There are
2,184 mi
from Union City, CA to Wauwatosa, WI
That's the driving distance. It would take 1 day 13 hours to go from Union City, California to Wauwatosa, Wisconsin.
The flight distance (direct flight from Union City, CA to Wauwatosa, WI) is 1,819.22 mi.
2,184 mi = 3.22 kms