There are
2,815 mi
from Rockville, MD to Soledad, CA
That's the driving distance. It would take 2 days 2 hours to go from Rockville, Maryland to Soledad, California.
The flight distance (direct flight from Rockville, MD to Soledad, CA) is 2,396.35 mi.
2,815 mi = 4,529.60 kms