Miles between Allentown, PA and Rockville, MD

There are
187 mi
from Allentown, PA to Rockville, MD

That's the driving distance. It would take 3 hours 51 mins to go from Allentown, Pennsylvania to Rockville, Maryland.

The flight distance (direct flight from Allentown, PA to Rockville, MD) is 137.37 mi.

187 mi = 300.51 kms