There are
212 mi
from Oshkosh, WI to Portage, IN
That's the driving distance. It would take 4 hours 16 mins to go from Oshkosh, Wisconsin to Portage, Indiana.
The flight distance (direct flight from Oshkosh, WI to Portage, IN) is 182.82 mi.
212 mi = 341.00 kms