Miles between Thornton, CO and Belvidere, IL

There are
954 mi
from Thornton, CO to Belvidere, IL

That's the driving distance. It would take 16 hours 48 mins to go from Thornton, Colorado to Belvidere, Illinois.

The flight distance (direct flight from Thornton, CO to Belvidere, IL) is 854.92 mi.

954 mi = 1,535.44 kms