Miles between Boulder, CO and Placentia, CA

There are
1,017 mi
from Boulder, CO to Placentia, CA

That's the driving distance. It would take 17 hours 54 mins to go from Boulder, Colorado to Placentia, California.

The flight distance (direct flight from Boulder, CO to Placentia, CA) is 813.77 mi.

1,017 mi = 1.61 kms