Miles between Walnut Creek, CA and Boulder, CO

There are
1,227 mi
from Walnut Creek, CA to Boulder, CO

That's the driving distance. It would take 21 hours 6 mins to go from Walnut Creek, California to Boulder, Colorado.

The flight distance (direct flight from Walnut Creek, CA to Boulder, CO) is 912.54 mi.

1,227 mi = 1,975.40 kms