Operating method for a roller mill for rolling flat rolled goods having roller wear prediction

The invention relates to a roller mill for rolling flat rolled goods (1), comprising at least one roll stand (2) having rollers (3). The flat rolled goods (1) are rolled in the roll stand (2). During rolling of the flat rolled goods (1) in the roll stand (2), actual parameters (I) of the flat rolled goods (1) and/or the roll stand (2) are captured. Based on an initial state of at least one roller (3) of the roll stand (2), an expected current actual wear (V) of the at least one roller (3) is derived by means of a wear model (8), using the actual parameters (I) captured during the previous roller run of the particular roller (3). Based on the expected current actual wear (V), using the wear model (8) and expected actual future parameters for flat rolled goods (1) to be rolled in the future, an expected future actual wear (V') of the at least one roller (3) is derived for at least one position (P) of the future roller run. The position (P) of the future roller run, the expected future actual wear (V'), and/or i