There are
2,797 mi
from Clifton, NJ to Simi Valley, CA
That's the driving distance. It would take 2 days 1 hour to go from Clifton, New Jersey to Simi Valley, California.
The flight distance (direct flight from Clifton, NJ to Simi Valley, CA) is 2,458.57 mi.
2,797 mi = 4,501.61 kms