Distance from Gary, IN to Decatur, IL is 178Miles or 287 Km. You can get this distance about 2 hours 46 mins. If you want to planning travel with plane for 148 Miles or 238 Km, You can get this distance about 49 mins .
A car with an average MPG will needs 8.24 gallons of gas to get the route between these points.
The estimated cost of gas to get between Gary, IN and Decatur, IL is $18.7.
During the route, an average car will release 161.44 pounds of CO2 to the atmosphere. Your carbon footprint is 0.91 pounds of CO2 per mile.
* Average US MPG used for calculations is 21.6 MPG.
* Average US gas price used for calculation is 2.27 per gallon.