There are
2,718 mi
from Gaithersburg, MD to Davis, CA
That's the driving distance. It would take 1 day 23 hours to go from Gaithersburg, Maryland to Davis, California.
The flight distance (direct flight from Gaithersburg, MD to Davis, CA) is 2,372.61 mi.
2,718 mi = 4,374.51 kms