There are
2,146 mi
from Oshkosh, WI to Hercules, CA
That's the driving distance. It would take 1 day 13 hours to go from Oshkosh, Wisconsin to Hercules, California.
The flight distance (direct flight from Oshkosh, WI to Hercules, CA) is 1,794.03 mi.
2,146 mi = 3,453.89 kms