There are
2,193 mi
from Marietta, GA to Simi Valley, CA
That's the driving distance. It would take 1 day 14 hours to go from Marietta, Georgia to Simi Valley, California.
The flight distance (direct flight from Marietta, GA to Simi Valley, CA) is 1,948.97 mi.
2,193 mi = 3,529.14 kms