Miles between Naperville, IL and Castle Rock, CO

There are
1,006 mi
from Naperville, IL to Castle Rock, CO

That's the driving distance. It would take 17 hours 39 mins to go from Naperville, Illinois to Castle Rock, Colorado.

The flight distance (direct flight from Naperville, IL to Castle Rock, CO) is 891.04 mi.

1,006 mi = 1.61 kms