There are
628 mi
from Waterloo, IA to Chillicothe, OH
That's the driving distance. It would take 11 hours 53 mins to go from Waterloo, Iowa to Chillicothe, Ohio.
The flight distance (direct flight from Waterloo, IA to Chillicothe, OH) is 534.90 mi.
628 mi = 1,010.20 kms