Abstract: A method for determining the inclination of a tower, in particular of a wind turbine, in relation to the gravitational field, by evaluating the output signal from an acceleration sensor configured to pick up static acceleration in the direction of a sensor measurement axis, which method is simple to use and can be carried out on any wind turbines. It is proposed that the acceleration sensor is attached to a component, preferably to a main frame, which can be rotated about the longitudinal axis of the tower in an azimuth angular range of at least 180°, such that the sensor measurement axis is oriented substantially parallel to the plane of rotation of the component, the output signals, in the case of various azimuth angles, being successively measured and recorded by rotating the component between measurements, the inclination being determined by evaluation of the series of measurements obtained.