There are
623 mi
from Norwalk, CT to Chillicothe, OH
That's the driving distance. It would take 12 hours 25 mins to go from Norwalk, Connecticut to Chillicothe, Ohio.
The flight distance (direct flight from Norwalk, CT to Chillicothe, OH) is 519.62 mi.
623 mi = 1,003.34 kms