Miles between Boulder, CO and Greenfield, IN

There are
1,128 mi
from Boulder, CO to Greenfield, IN

That's the driving distance. It would take 20 hours 11 mins to go from Boulder, Colorado to Greenfield, Indiana.

The flight distance (direct flight from Boulder, CO to Greenfield, IN) is 1,031.76 mi.

1,128 mi = 1.61 kms