Distance from Keystone, SD to Custer, SD is 23Miles or 37 Km. You can get this distance about 36 mins. If you want to planning travel with plane for 13 Miles or 21 Km, You can get this distance about 31 mins .
A car with an average MPG will needs 1.06 gallons of gas to get the route between these points.
The estimated cost of gas to get between Keystone, SD and Custer, SD is $2.41.
During the route, an average car will release 20.77 pounds of CO2 to the atmosphere. Your carbon footprint is 0.9 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.