There are
1,830 mi
from Hayward, CA to Boone, IA
That's the driving distance. It would take 1 day 7 hours to go from Hayward, California to Boone, Iowa.
The flight distance (direct flight from Hayward, CA to Boone, IA) is 1,518.78 mi.
1,830 mi = 1.61 kms