Miles between Boulder, CO and Northbrook, IL

There are
1,024 mi
from Boulder, CO to Northbrook, IL

That's the driving distance. It would take 18 hours 9 mins to go from Boulder, Colorado to Northbrook, Illinois.

The flight distance (direct flight from Boulder, CO to Northbrook, IL) is 918.52 mi.

1,024 mi = 1,647.67 kms