Miles between Billings, MT and Castle Rock, CO

There are
581 mi
from Billings, MT to Castle Rock, CO

That's the driving distance. It would take 9 hours 41 mins to go from Billings, Montana to Castle Rock, Colorado.

The flight distance (direct flight from Billings, MT to Castle Rock, CO) is 480.08 mi.

581 mi = 934.95 kms