There are
2,212 mi
from National City, CA to Piqua, OH
That's the driving distance. It would take 1 day 15 hours to go from National City, California to Piqua, Ohio.
The flight distance (direct flight from National City, CA to Piqua, OH) is 1,886.46 mi.
2,212 mi = 3,559.18 kms