Miles between Green Bay, WI and Castle Rock, CO

There are
1,121 mi
from Green Bay, WI to Castle Rock, CO

That's the driving distance. It would take 20 hours 25 mins to go from Green Bay, Wisconsin to Castle Rock, Colorado.

The flight distance (direct flight from Green Bay, WI to Castle Rock, CO) is 933.23 mi.

1,121 mi = 1.61 kms