There are
627 mi
from Topeka, KS to Oshkosh, WI
That's the driving distance. It would take 12 hours 4 mins to go from Topeka, Kansas to Oshkosh, Wisconsin.
The flight distance (direct flight from Topeka, KS to Oshkosh, WI) is 504.08 mi.
627 mi = 1,008.57 kms