There are
976 mi
from Union, NJ to Kaukauna, WI
That's the driving distance. It would take 18 hours 25 mins to go from Union, New Jersey to Kaukauna, Wisconsin.
The flight distance (direct flight from Union, NJ to Kaukauna, WI) is 754.26 mi.
976 mi = 1,570.22 kms