There are
2,640 mi
from Gaithersburg, MD to Calabasas, CA
That's the driving distance. It would take 1 day 23 hours to go from Gaithersburg, Maryland to Calabasas, California.
The flight distance (direct flight from Gaithersburg, MD to Calabasas, CA) is 2,304.21 mi.
2,640 mi = 4,248.63 kms