Miles between Boulder, CO and Louisville, KY

There are
1,127 mi
from Boulder, CO to Louisville, KY

That's the driving distance. It would take 20 hours 6 mins to go from Boulder, Colorado to Louisville, Kentucky.

The flight distance (direct flight from Boulder, CO to Louisville, KY) is 1,050.68 mi.

1,127 mi = 1.61 kms