Miles between Rockford, IL and Decatur, AL

There are
645 mi
from Rockford, IL to Decatur, AL

That's the driving distance. It would take 12 hours 7 mins to go from Rockford, Illinois to Decatur, Alabama.

The flight distance (direct flight from Rockford, IL to Decatur, AL) is 541.74 mi.

645 mi = 1,037.98 kms