There are
2,186 mi
from Union City, CA to Caledonia, WI
That's the driving distance. It would take 1 day 13 hours to go from Union City, California to Caledonia, Wisconsin.
The flight distance (direct flight from Union City, CA to Caledonia, WI) is 1,823.42 mi.
2,186 mi = 3.22 kms