Miles between Boulder, CO and Janesville, WI

There are
1,001 mi
from Boulder, CO to Janesville, WI

That's the driving distance. It would take 17 hours 43 mins to go from Boulder, Colorado to Janesville, Wisconsin.

The flight distance (direct flight from Boulder, CO to Janesville, WI) is 861.44 mi.

1,001 mi = 1.61 kms