Miles between Waterloo, IA and Decatur, IL

There are
318 mi
from Waterloo, IA to Decatur, IL

That's the driving distance. It would take 5 hours 59 mins to go from Waterloo, Iowa to Decatur, Illinois.

The flight distance (direct flight from Waterloo, IA to Decatur, IL) is 254.21 mi.

318 mi = 512.01 kms