Miles between Boulder, CO and Erlanger, KY

There are
1,216 mi
from Boulder, CO to Erlanger, KY

That's the driving distance. It would take 21 hours 43 mins to go from Boulder, Colorado to Erlanger, Kentucky.

The flight distance (direct flight from Boulder, CO to Erlanger, KY) is 1,101.45 mi.

1,216 mi = 1.61 kms