There are
2,128 mi
from Sunnyvale, CA to Sun Prairie, WI
That's the driving distance. It would take 1 day 13 hours to go from Sunnyvale, California to Sun Prairie, Wisconsin.
The flight distance (direct flight from Sunnyvale, CA to Sun Prairie, WI) is 1,764.13 mi.
2,128 mi = 3.22 kms