Miles between Rialto, CA and Boulder, CO

There are
982 mi
from Rialto, CA to Boulder, CO

That's the driving distance. It would take 17 hours 19 mins to go from Rialto, California to Boulder, Colorado.

The flight distance (direct flight from Rialto, CA to Boulder, CO) is 781.03 mi.

982 mi = 1,580.89 kms