Distance from Gillette, WY to Helena, MT is 470Miles or 756 Km. You can get this distance about 6 hours 55 mins. If you want to planning travel with plane for 355 Miles or 570 Km, You can get this distance about 1 hours 15 mins .
A car with an average MPG will needs 21.76 gallons of gas to get the route between these points.
The estimated cost of gas to get between Gillette, WY and Helena, MT is $49.4.
During the route, an average car will release 426.32 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.