There are
2,855 mi
from Walnut Creek, CA to Smithfield, NC
That's the driving distance. It would take 2 days 2 hours to go from Walnut Creek, California to Smithfield, North Carolina.
The flight distance (direct flight from Walnut Creek, CA to Smithfield, NC) is 2,405.53 mi.
2,855 mi = 4,595.04 kms