Miles between Longmont, CO and Mchenry, IL

There are
993 mi
from Longmont, CO to Mchenry, IL

That's the driving distance. It would take 17 hours 58 mins to go from Longmont, Colorado to Mchenry, Illinois.

The flight distance (direct flight from Longmont, CO to Mchenry, IL) is 885.73 mi.

993 mi = 1,597.54 kms