There are
2,320 mi
from Roseville, CA to Picayune, MS
That's the driving distance. It would take 1 day 16 hours to go from Roseville, California to Picayune, Mississippi.
The flight distance (direct flight from Roseville, CA to Picayune, MS) is 1,873.83 mi.
2,320 mi = 3.22 kms