Miles between Boulder, CO and Boone, IA

There are
706 mi
from Boulder, CO to Boone, IA

That's the driving distance. It would take 12 hours 27 mins to go from Boulder, Colorado to Boone, Iowa.

The flight distance (direct flight from Boulder, CO to Boone, IA) is 609.71 mi.

706 mi = 1,136.50 kms