Miles between Trenton, NJ and Portsmouth, NH

There are
323 mi
from Trenton, NJ to Portsmouth, NH

That's the driving distance. It would take 6 hours 52 mins to go from Trenton, New Jersey to Portsmouth, New Hampshire.

The flight distance (direct flight from Trenton, NJ to Portsmouth, NH) is 284.78 mi.

323 mi = 519.25 kms