There are
1,912 mi
from Simi Valley, CA to Platteville, WI
That's the driving distance. It would take 1 day 10 hours to go from Simi Valley, California to Platteville, Wisconsin.
The flight distance (direct flight from Simi Valley, CA to Platteville, WI) is 1,628.81 mi.
1,912 mi = 1.61 kms