Miles between Thornton, CO and Hercules, CA

There are
1,222 mi
from Thornton, CO to Hercules, CA

That's the driving distance. It would take 20 hours 53 mins to go from Thornton, Colorado to Hercules, California.

The flight distance (direct flight from Thornton, CO to Hercules, CA) is 937.83 mi.

1,222 mi = 1.61 kms