There are
336 mi
from Gaithersburg, MD to Beachwood, OH
That's the driving distance. It would take 6 hours 20 mins to go from Gaithersburg, Maryland to Beachwood, Ohio.
The flight distance (direct flight from Gaithersburg, MD to Beachwood, OH) is 277.85 mi.
336 mi = 540.27 kms