Miles between Rockville, MD and Decatur, GA

There are
645 mi
from Rockville, MD to Decatur, GA

That's the driving distance. It would take 12 hours 21 mins to go from Rockville, Maryland to Decatur, Georgia.

The flight distance (direct flight from Rockville, MD to Decatur, GA) is 540.28 mi.

645 mi = 1,037.44 kms