There are
1,807 mi
from Oshkosh, WI to Boulder City, NV
That's the driving distance. It would take 1 day 8 hours to go from Oshkosh, Wisconsin to Boulder City, Nevada.
The flight distance (direct flight from Oshkosh, WI to Boulder City, NV) is 1,490.32 mi.
1,807 mi = 2,908.83 kms