Miles between Boise, ID and Castle Rock, CO

There are
846 mi
from Boise, ID to Castle Rock, CO

That's the driving distance. It would take 14 hours 13 mins to go from Boise, Idaho to Castle Rock, Colorado.

The flight distance (direct flight from Boise, ID to Castle Rock, CO) is 657.15 mi.

846 mi = 1,361.57 kms