There are
2,910 mi
from Richmond, CA to Mamaroneck, NY
That's the driving distance. It would take 2 days 3 hours to go from Richmond, California to Mamaroneck, New York.
The flight distance (direct flight from Richmond, CA to Mamaroneck, NY) is 2,568.89 mi.
2,910 mi = 3.22 kms