There are
823 mi
from Wilmington, DE to Caledonia, WI
That's the driving distance. It would take 15 hours 26 mins to go from Wilmington, Delaware to Caledonia, Wisconsin.
The flight distance (direct flight from Wilmington, DE to Caledonia, WI) is 675.88 mi.
823 mi = 1,324.20 kms