There are
1,990 mi
from Macomb, IL to Oakley, CA
That's the driving distance. It would take 1 day 10 hours to go from Macomb, Illinois to Oakley, California.
The flight distance (direct flight from Macomb, IL to Oakley, CA) is 1,661.42 mi.
1,990 mi = 3,201.85 kms