Miles between Boulder, CO and Larkspur, CA

There are
1,241 mi
from Boulder, CO to Larkspur, CA

That's the driving distance. It would take 21 hours 28 mins to go from Boulder, Colorado to Larkspur, California.

The flight distance (direct flight from Boulder, CO to Larkspur, CA) is 936.89 mi.

1,241 mi = 1.61 kms