There are
589 mi
from Ann Arbor, MI to Florham Park, NJ
That's the driving distance. It would take 11 hours 3 mins to go from Ann Arbor, Michigan to Florham Park, New Jersey.
The flight distance (direct flight from Ann Arbor, MI to Florham Park, NJ) is 494.43 mi.
589 mi = 947.47 kms