There are
418 mi
from Gaithersburg, MD to Woonsocket, RI
That's the driving distance. It would take 8 hours 39 mins to go from Gaithersburg, Maryland to Woonsocket, Rhode Island.
The flight distance (direct flight from Gaithersburg, MD to Woonsocket, RI) is 357.79 mi.
418 mi = 672.00 kms