Miles between Thornton, CO and Greencastle, IN

There are
1,055 mi
from Thornton, CO to Greencastle, IN

That's the driving distance. It would take 18 hours 48 mins to go from Thornton, Colorado to Greencastle, Indiana.

The flight distance (direct flight from Thornton, CO to Greencastle, IN) is 960.28 mi.

1,055 mi = 1.61 kms