Miles between Rialto, CA and Diamond Bar, CA

There are
31 mi
from Rialto, CA to Diamond Bar, CA

That's the driving distance. It would take 39 minutes to go from Rialto, California to Diamond Bar, California.

The flight distance (direct flight from Rialto, CA to Diamond Bar, CA) is 25.75 mi.

31 mi = 49.31 kms