There are
624 mi
from Oshkosh, WI to Gallatin, TN
That's the driving distance. It would take 11 hours 54 mins to go from Oshkosh, Wisconsin to Gallatin, Tennessee.
The flight distance (direct flight from Oshkosh, WI to Gallatin, TN) is 539.03 mi.
624 mi = 1,003.50 kms