There are
2,164 mi
from Oakland, CA to Oshkosh, WI
That's the driving distance. It would take 1 day 13 hours to go from Oakland, California to Oshkosh, Wisconsin.
The flight distance (direct flight from Oakland, CA to Oshkosh, WI) is 1,799.20 mi.
2,164 mi = 3.22 kms