There are
643 mi
from Orem, UT to Rosemead, CA
That's the driving distance. It would take 11 hours 9 mins to go from Orem, Utah to Rosemead, California.
The flight distance (direct flight from Orem, UT to Rosemead, CA) is 554.39 mi.
643 mi = 1,034.21 kms