There are
673 mi
from Knoxville, TN to Stoughton, WI
That's the driving distance. It would take 12 hours 46 mins to go from Knoxville, Tennessee to Stoughton, Wisconsin.
The flight distance (direct flight from Knoxville, TN to Stoughton, WI) is 557.30 mi.
673 mi = 1,083.57 kms