A calibration method for a Hall sensor having a Hall sensitive layer with four electrical contacts and a first field plate, wherein, at a first temperature and at a first magnetic flux density, a resistance value of the Hall sensitive layer is determined for each of at least three different field plate voltages present at the field plate, a calibration curve is produced from the at least three resistance values, a deviation value of the calibration curve is determined from a reference calibration curve, and the field plate voltage that is present at the first field plate or an operating voltage that is present at the sensitive layer is readjusted by a correction value corresponding to the deviation value.