There are
2,189 mi
from Oshkosh, WI to Belmont, CA
That's the driving distance. It would take 1 day 14 hours to go from Oshkosh, Wisconsin to Belmont, California.
The flight distance (direct flight from Oshkosh, WI to Belmont, CA) is 1,807.70 mi.
2,189 mi = 3,523.54 kms