Miles between Rialto, CA and Castle Rock, CO

There are
997 mi
from Rialto, CA to Castle Rock, CO

That's the driving distance. It would take 17 hours 26 mins to go from Rialto, California to Castle Rock, Colorado.

The flight distance (direct flight from Rialto, CA to Castle Rock, CO) is 781.59 mi.

997 mi = 1,604.54 kms