Miles between Thornton, CO and Marshalltown, IA

There are
716 mi
from Thornton, CO to Marshalltown, IA

That's the driving distance. It would take 12 hours 33 mins to go from Thornton, Colorado to Marshalltown, Iowa.

The flight distance (direct flight from Thornton, CO to Marshalltown, IA) is 646.66 mi.

716 mi = 1,152.11 kms