Miles between Rockford, IL and Castle Rock, CO

There are
987 mi
from Rockford, IL to Castle Rock, CO

That's the driving distance. It would take 17 hours 20 mins to go from Rockford, Illinois to Castle Rock, Colorado.

The flight distance (direct flight from Rockford, IL to Castle Rock, CO) is 846.77 mi.

987 mi = 1,589.13 kms