There are
285 mi
from Peoria, IL to Oshkosh, WI
That's the driving distance. It would take 5 hours 39 mins to go from Peoria, Illinois to Oshkosh, Wisconsin.
The flight distance (direct flight from Peoria, IL to Oshkosh, WI) is 236.27 mi.
285 mi = 459.11 kms