There are
1,403 mi
from Fort Pierce, FL to Oshkosh, WI
That's the driving distance. It would take 1 day 2 hours to go from Fort Pierce, Florida to Oshkosh, Wisconsin.
The flight distance (direct flight from Fort Pierce, FL to Oshkosh, WI) is 1,233.07 mi.
1,403 mi = 2,257.94 kms