Miles between Santa Monica, CA and Castle Rock, CO

There are
1,058 mi
from Santa Monica, CA to Castle Rock, CO

That's the driving distance. It would take 18 hours 36 mins to go from Santa Monica, California to Castle Rock, Colorado.

The flight distance (direct flight from Santa Monica, CA to Castle Rock, CO) is 839.83 mi.

1,058 mi = 1.61 kms