There are
2,735 mi
from Trenton, NJ to Fountain Valley, CA
That's the driving distance. It would take 2 days to go from Trenton, New Jersey to Fountain Valley, California.
The flight distance (direct flight from Trenton, NJ to Fountain Valley, CA) is 2,403.34 mi.
2,735 mi = 4,401.45 kms