There are
2,477 mi
from Roswell, GA to Walnut Creek, CA
That's the driving distance. It would take 1 day 19 hours to go from Roswell, Georgia to Walnut Creek, California.
The flight distance (direct flight from Roswell, GA to Walnut Creek, CA) is 2,111.06 mi.
2,477 mi = 3.22 kms