There are
2,625 mi
from Rockville, MD to Cudahy, CA
That's the driving distance. It would take 1 day 22 hours to go from Rockville, Maryland to Cudahy, California.
The flight distance (direct flight from Rockville, MD to Cudahy, CA) is 2,286.07 mi.
2,625 mi = 4,225.13 kms