Method for determining a range of at least one headlamp and method for calibrating a light emission from at least one headlamp of a vehicle

The method involves detecting road-marking features which are illuminated by the headlight (110). A distance between the vehicle (100) and the illuminated road-marking features is ascertained. The illumination range (115) of the headlight is determined using the ascertained distance. Independent claims are included for the following: (1) method for calibrating light emission of headlight of vehicle; (2) device for calibrating light emission of headlight of vehicle; and (3) computer program product for calibrating light emission of headlight of vehicle.