Miles between Longmont, CO and Greenfield, WI

There are
1,033 mi
from Longmont, CO to Greenfield, WI

That's the driving distance. It would take 18 hours 26 mins to go from Longmont, Colorado to Greenfield, Wisconsin.

The flight distance (direct flight from Longmont, CO to Greenfield, WI) is 902.61 mi.

1,033 mi = 1.61 kms