There are
2,028 mi
from Fullerton, CA to Marshfield, WI
That's the driving distance. It would take 1 day 12 hours to go from Fullerton, California to Marshfield, Wisconsin.
The flight distance (direct flight from Fullerton, CA to Marshfield, WI) is 1,650.27 mi.
2,028 mi = 3.22 kms