There are
643 mi
from Rosemead, CA to Orem, UT
That's the driving distance. It would take 11 hours 10 mins to go from Rosemead, California to Orem, Utah.
The flight distance (direct flight from Rosemead, CA to Orem, UT) is 554.39 mi.
643 mi = 1,034.11 kms