There are
2,956 mi
from New Rochelle, NY to Los Altos, CA
That's the driving distance. It would take 2 days 4 hours to go from New Rochelle, New York to Los Altos, California.
The flight distance (direct flight from New Rochelle, NY to Los Altos, CA) is 2,568.25 mi.
2,956 mi = 4,757.92 kms