There are
2,145 mi
from Sunnyvale, CA to Marshfield, WI
That's the driving distance. It would take 1 day 13 hours to go from Sunnyvale, California to Marshfield, Wisconsin.
The flight distance (direct flight from Sunnyvale, CA to Marshfield, WI) is 1,723.48 mi.
2,145 mi = 3.22 kms