There are
2,157 mi
from Oshkosh, WI to Pittsburg, CA
That's the driving distance. It would take 1 day 13 hours to go from Oshkosh, Wisconsin to Pittsburg, California.
The flight distance (direct flight from Oshkosh, WI to Pittsburg, CA) is 1,773.66 mi.
2,157 mi = 3,471.36 kms