There are
2,903 mi
from Ridgewood, NJ to San Leandro, CA
That's the driving distance. It would take 2 days 3 hours to go from Ridgewood, New Jersey to San Leandro, California.
The flight distance (direct flight from Ridgewood, NJ to San Leandro, CA) is 2,544.10 mi.
2,903 mi = 4,672.30 kms