Miles between Decatur, IL and Gaithersburg, MD

There are
717 mi
from Decatur, IL to Gaithersburg, MD

That's the driving distance. It would take 13 hours 48 mins to go from Decatur, Illinois to Gaithersburg, Maryland.

The flight distance (direct flight from Decatur, IL to Gaithersburg, MD) is 628.09 mi.

717 mi = 1,153.70 kms