Miles between Thornton, CO and Merrillville, IN

There are
1,017 mi
from Thornton, CO to Merrillville, IN

That's the driving distance. It would take 18 hours 7 mins to go from Thornton, Colorado to Merrillville, Indiana.

The flight distance (direct flight from Thornton, CO to Merrillville, IN) is 929.38 mi.

1,017 mi = 1.61 kms