There are
2,008 mi
from Oshkosh, WI to Rialto, CA
That's the driving distance. It would take 1 day 11 hours to go from Oshkosh, Wisconsin to Rialto, California.
The flight distance (direct flight from Oshkosh, WI to Rialto, CA) is 1,680.20 mi.
2,008 mi = 3,232.23 kms