There are
2,098 mi
from Simi Valley, CA to Grafton, WI
That's the driving distance. It would take 1 day 13 hours to go from Simi Valley, California to Grafton, Wisconsin.
The flight distance (direct flight from Simi Valley, CA to Grafton, WI) is 1,761.71 mi.
2,098 mi = 3.22 kms