Miles between Longmont, CO and Castle Rock, CO

There are
66 mi
from Longmont, CO to Castle Rock, CO

That's the driving distance. It would take 1 hour 21 mins to go from Longmont, Colorado to Castle Rock, Colorado.

The flight distance (direct flight from Longmont, CO to Castle Rock, CO) is 56.46 mi.

66 mi = 106.14 kms