Miles between Thornton, CO and Greendale, WI

There are
1,031 mi
from Thornton, CO to Greendale, WI

That's the driving distance. It would take 18 hours 14 mins to go from Thornton, Colorado to Greendale, Wisconsin.

The flight distance (direct flight from Thornton, CO to Greendale, WI) is 903.31 mi.

1,031 mi = 1.61 kms