There are
1,808 mi
from Rosemead, CA to Arnold, MO
That's the driving distance. It would take 1 day 7 hours to go from Rosemead, California to Arnold, Missouri.
The flight distance (direct flight from Rosemead, CA to Arnold, MO) is 1,565.89 mi.
1,808 mi = 2,909.93 kms