There are
1,137 mi
from Longmont, CO to Shelbyville, IN
That's the driving distance. It would take 20 hours 16 mins to go from Longmont, Colorado to Shelbyville, Indiana.
The flight distance (direct flight from Longmont, CO to Shelbyville, IN) is 1,024.13 mi.
1,137 mi = 1.61 kms