Miles between Green Bay, WI and Boulder, CO

There are
1,104 mi
from Green Bay, WI to Boulder, CO

That's the driving distance. It would take 20 hours 12 mins to go from Green Bay, Wisconsin to Boulder, Colorado.

The flight distance (direct flight from Green Bay, WI to Boulder, CO) is 933.18 mi.

1,104 mi = 1.61 kms