There are
2,892 mi
from Hayward, CA to Florham Park, NJ
That's the driving distance. It would take 2 days 2 hours to go from Hayward, California to Florham Park, New Jersey.
The flight distance (direct flight from Hayward, CA to Florham Park, NJ) is 2,530.22 mi.
2,892 mi = 3.22 kms