View a map with the driving distance between Gary, IN and Chicago, IL to calculate your road trip mileage. read more
View a map with the driving distance between MDW and Gary, IN to calculate your road trip mileage. read more
Now let's assume you have a private jet and you can fly in the fastest possible straight line between Chicago, Illinois and Gary, Indiana. Because of the curvature of the Earth, the shortest distance is actually the "great circle" distance, or "as the crow flies" which is calculated using an iterative Vincenty formula. read more