There are
2,090 mi
from Carlsbad, CA to Oshkosh, WI
That's the driving distance. It would take 1 day 13 hours to go from Carlsbad, California to Oshkosh, Wisconsin.
The flight distance (direct flight from Carlsbad, CA to Oshkosh, WI) is 1,715.49 mi.
2,090 mi = 3,363.23 kms