There are
200 mi
from Rosemead, CA to San Luis Obispo, CA
That's the driving distance. It would take 4 hours 3 mins to go from Rosemead, California to San Luis Obispo, California.
The flight distance (direct flight from Rosemead, CA to San Luis Obispo, CA) is 168.82 mi.
200 mi = 322.50 kms