Miles between Allentown, PA and Gaithersburg, MD

There are
179 mi
from Allentown, PA to Gaithersburg, MD

That's the driving distance. It would take 3 hours 49 mins to go from Allentown, Pennsylvania to Gaithersburg, Maryland.

The flight distance (direct flight from Allentown, PA to Gaithersburg, MD) is 135.93 mi.

179 mi = 287.44 kms