There are
2,203 mi
from Gardena, CA to Piqua, OH
That's the driving distance. It would take 1 day 14 hours to go from Gardena, California to Piqua, Ohio.
The flight distance (direct flight from Gardena, CA to Piqua, OH) is 1,916 mi.
2,203 mi = 3,545.31 kms