Miles between Boulder, CO and Petaluma, CA

There are
1,236 mi
from Boulder, CO to Petaluma, CA

That's the driving distance. It would take 21 hours 23 mins to go from Boulder, Colorado to Petaluma, California.

The flight distance (direct flight from Boulder, CO to Petaluma, CA) is 937.43 mi.

1,236 mi = 1.61 kms