Miles between Boulder, CO and Green Bay, WI

There are
1,105 mi
from Boulder, CO to Green Bay, WI

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

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

1,105 mi = 1.61 kms