There are
2,066 mi
from Simi Valley, CA to Greenfield, WI
That's the driving distance. It would take 1 day 12 hours to go from Simi Valley, California to Greenfield, Wisconsin.
The flight distance (direct flight from Simi Valley, CA to Greenfield, WI) is 1,754.48 mi.
2,066 mi = 3.22 kms