There are
2,292 mi
from Oshkosh, WI to Eureka, CA
That's the driving distance. It would take 1 day 16 hours to go from Oshkosh, Wisconsin to Eureka, California.
The flight distance (direct flight from Oshkosh, WI to Eureka, CA) is 1,816.39 mi.
2,292 mi = 3,689.14 kms