Abstract: In a method for determining a coefficient of friction in which vibrations of a tire are measured and a frequency spectrum of the vibration of the tire is evaluated, the following steps are carried out: frequency signals are recorded in at least two frequency bands, amplitudes of the frequency signals are compared with empirical values which are dependent on the coefficient of friction and on a momentary force transmission state of the tire, a coefficient of friction is determined and a maximum available force which can be transmitted from the tire to the road surface is determined from the coefficient of friction.