There are
380 mi
from Oshkosh, WI to Martinsville, IN
That's the driving distance. It would take 7 hours 26 mins to go from Oshkosh, Wisconsin to Martinsville, Indiana.
The flight distance (direct flight from Oshkosh, WI to Martinsville, IN) is 335.77 mi.
380 mi = 612.14 kms