Miles between Napa, CA and Hercules, CA

There are
27 mi
from Napa, CA to Hercules, CA

That's the driving distance. It would take 36 minutes to go from Napa, California to Hercules, California.

The flight distance (direct flight from Napa, CA to Hercules, CA) is 19.88 mi.

27 mi = 43.45 kms