There are
2,378 mi
from Farmington Hills, MI to Piedmont, CA
That's the driving distance. It would take 1 day 17 hours to go from Farmington Hills, Michigan to Piedmont, California.
The flight distance (direct flight from Farmington Hills, MI to Piedmont, CA) is 2,056.57 mi.
2,378 mi = 3.22 kms