Miles between Boulder, CO and Port Washington, WI

There are
1,085 mi
from Boulder, CO to Port Washington, WI

That's the driving distance. It would take 19 hours 17 mins to go from Boulder, Colorado to Port Washington, Wisconsin.

The flight distance (direct flight from Boulder, CO to Port Washington, WI) is 925.22 mi.

1,085 mi = 1.61 kms