There are
1,892 mi
from Downey, CA to Platteville, WI
That's the driving distance. It would take 1 day 9 hours to go from Downey, California to Platteville, Wisconsin.
The flight distance (direct flight from Downey, CA to Platteville, WI) is 1,608.02 mi.
1,892 mi = 1.61 kms