There are
2,110 mi
from Simi Valley, CA to Greenfield, IN
That's the driving distance. It would take 1 day 13 hours to go from Simi Valley, California to Greenfield, Indiana.
The flight distance (direct flight from Simi Valley, CA to Greenfield, IN) is 1,849.40 mi.
2,110 mi = 3,396.13 kms