Miles between Riverside, CA and Piedmont, CA

There are
422 mi
from Riverside, CA to Piedmont, CA

That's the driving distance. It would take 7 hours 55 mins to go from Riverside, California to Piedmont, California.

The flight distance (direct flight from Riverside, CA to Piedmont, CA) is 380.43 mi.

422 mi = 679.33 kms