There are
2,645 mi
from Gaithersburg, MD to Rancho Palos Verdes, CA
That's the driving distance. It would take 1 day 23 hours to go from Gaithersburg, Maryland to Rancho Palos Verdes, California.
The flight distance (direct flight from Gaithersburg, MD to Rancho Palos Verdes, CA) is 2,299.40 mi.
2,645 mi = 4,256.53 kms