Miles between Detroit, MI and Decatur, AL

There are
645 mi
from Detroit, MI to Decatur, AL

That's the driving distance. It would take 12 hours 4 mins to go from Detroit, Michigan to Decatur, Alabama.

The flight distance (direct flight from Detroit, MI to Decatur, AL) is 574.53 mi.

645 mi = 1,037.64 kms