There are
2,179 mi
from Hayward, CA to Oshkosh, WI
That's the driving distance. It would take 1 day 14 hours to go from Hayward, California to Oshkosh, Wisconsin.
The flight distance (direct flight from Hayward, CA to Oshkosh, WI) is 1,793.69 mi.
2,179 mi = 3.22 kms