There are
2,641 mi
from Rockville, MD to Lomita, CA
That's the driving distance. It would take 1 day 23 hours to go from Rockville, Maryland to Lomita, California.
The flight distance (direct flight from Rockville, MD to Lomita, CA) is 2,297.22 mi.
2,641 mi = 4,249.90 kms