There are
519 mi
from Youngstown, OH to Oconomowoc, WI
That's the driving distance. It would take 9 hours 48 mins to go from Youngstown, Ohio to Oconomowoc, Wisconsin.
The flight distance (direct flight from Youngstown, OH to Oconomowoc, WI) is 425.52 mi.
519 mi = 834.83 kms