Apparatuses and methods are provided herein for performing marine auto-ranging. Marine auto-ranging may include the functionality to determine current conditions associated with a watercraft (e.g., remaining fuel, location, speed, wind, current, etc.) and determine a range for the watercraft and, in turn, possible destinations for the watercraft that are within range on a map. A marine electronic device may be configured to display a map and overlay the map with an indication of how far a watercraft could travel based on such current conditions, such as a highlighted or shaded geographical area around a current location of the watercraft on the map.