Miles between Hartford, CT and Gaithersburg, MD

There are
342 mi
from Hartford, CT to Gaithersburg, MD

That's the driving distance. It would take 7 hours 10 mins to go from Hartford, Connecticut to Gaithersburg, Maryland.

The flight distance (direct flight from Hartford, CT to Gaithersburg, MD) is 298.52 mi.

342 mi = 550.52 kms