There are
766 mi
from Gaithersburg, MD to Americus, GA
That's the driving distance. It would take 14 hours 51 mins to go from Gaithersburg, Maryland to Americus, Georgia.
The flight distance (direct flight from Gaithersburg, MD to Americus, GA) is 627.80 mi.
766 mi = 1,232.58 kms