There are
1,857 mi
from Decatur, IL to Calexico, CA
That's the driving distance. It would take 1 day 8 hours to go from Decatur, Illinois to Calexico, California.
The flight distance (direct flight from Decatur, IL to Calexico, CA) is 1,552.60 mi.
1,857 mi = 1.61 kms