There are
2,484 mi
from Roswell, GA to Half Moon Bay, CA
That's the driving distance. It would take 1 day 19 hours to go from Roswell, Georgia to Half Moon Bay, California.
The flight distance (direct flight from Roswell, GA to Half Moon Bay, CA) is 2,133.47 mi.
2,484 mi = 3,998.41 kms