There are
2,177 mi
from Santa Rosa, CA to Oshkosh, WI
That's the driving distance. It would take 1 day 14 hours to go from Santa Rosa, California to Oshkosh, Wisconsin.
The flight distance (direct flight from Santa Rosa, CA to Oshkosh, WI) is 1,803.35 mi.
2,177 mi = 3.22 kms