To provide correction data for determining position, first position data are determined and/or made available to a vehicle depending on an incoming Global Navigation Satellite System (GNSS) signal, the vehicle having a GNSS receiver or a differential GNSS (DGNSS) receiver for receiving the incoming GNSS signal, and the first position data being determined when the vehicle is in a charging position at a predefined charging station. Second position data are also determined and/or made available, the second position data including information which is representative of a global position of the predefined charging station. Correction data is determined depending on the first position data and the second position data. The correction data is made available to at least one further device to determine the position of the at least one further device.