There are
2,908 mi
from Redwood City, CA to Florham Park, NJ
That's the driving distance. It would take 2 days 3 hours to go from Redwood City, California to Florham Park, New Jersey.
The flight distance (direct flight from Redwood City, CA to Florham Park, NJ) is 2,542.58 mi.
2,908 mi = 4,680.06 kms