An automated method that determines a roundtrip range of a vehicle includes: retrieving a set of parameters associated with the vehicle; retrieving map information regarding a geographic area including multiple links associated with available roadways in the geographic area and each link includes a cost value; determining a set of roundtrip range projection links by evaluating the links to identify multiple roundtrip paths extending radially outward from the vehicle by: determining a total cost of an outbound path and a return path, where the paths meet at a common node; and including the common node in a range projection polygon if a summed cost for a set of links included in the outbound path and the return path is less than a target cost; and generating and displaying a map of at least a portion of the geographic area and a set of range projection polygons overlaid onto the map.