Miles between Boulder, CO and Willoughby, OH

There are
1,365 mi
from Boulder, CO to Willoughby, OH

That's the driving distance. It would take 1 day to go from Boulder, Colorado to Willoughby, Ohio.

The flight distance (direct flight from Boulder, CO to Willoughby, OH) is 1,248.71 mi.

1,365 mi = 1.61 kms