There are
2,375 mi
from Farmington Hills, MI to Petaluma, CA
That's the driving distance. It would take 1 day 17 hours to go from Farmington Hills, Michigan to Petaluma, California.
The flight distance (direct flight from Farmington Hills, MI to Petaluma, CA) is 2,067 mi.
2,375 mi = 3.22 kms