Distance from Gillette, WY to Helena, MT is 476Miles or 766 Km. You can get this distance about 7 hours 20 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 22.04 gallons of gas to get the route between these points.
The estimated cost of gas to get between Gillette, WY and Helena, MT is $50.03.
During the route, an average car will release 431.81 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.