There are
2,969 mi
from Trenton, NJ to Watsonville, CA
That's the driving distance. It would take 2 days 4 hours to go from Trenton, New Jersey to Watsonville, California.
The flight distance (direct flight from Trenton, NJ to Watsonville, CA) is 2,520.52 mi.
2,969 mi = 3.22 kms