There are
2,056 mi
from Simi Valley, CA to Marshfield, WI
That's the driving distance. It would take 1 day 12 hours to go from Simi Valley, California to Marshfield, Wisconsin.
The flight distance (direct flight from Simi Valley, CA to Marshfield, WI) is 1,674.99 mi.
2,056 mi = 3.22 kms