There are
222 mi
from Gaithersburg, MD to Chesapeake, VA
That's the driving distance. It would take 4 hours 21 mins to go from Gaithersburg, Maryland to Chesapeake, Virginia.
The flight distance (direct flight from Gaithersburg, MD to Chesapeake, VA) is 171.49 mi.
222 mi = 357.69 kms