Device (7, 23, 28) for calibrating or for normalizing a speed of an axis of motion of a machine (1, 33), the machine (1, 33) taking the form of a machine tool or a measuring machine, the device (7, 23, 28) exhibiting a measuring instrument and a measuring set-up, the measuring set-up exhibiting a first and a second measuring element (20, 21), the first and the second measuring element (20, 21) being present at a defined and known separation from one another on the measuring set-up, the measuring set-up being designed to be arranged on a workpiece receptacle of the machine (1, 33), the measuring instrument being designed to be arranged on a tool receptacle of the machine (1, 33), the measuring instrument being designed to carry out measurements at a known set frequency, the device (7, 23, 28) being so designed that when, in the state where the device (7, 23, 28) is arranged on the machine (1, 33), the measuring instrument is moved from the first measuring element to the second measuring element at a known set speed of an axis of motion of the machine (1, 33) the device (7, 23, 28), in particular the measuring instrument, interacts with the respective measuring element (20, 21) or the device (7, 23, 28), in particular the measuring instrument, detecting the respective measuring element (20, 21), and the device (7, 23, 28) ascertaining, in each instance, an interaction date or an acquisition date, characterized in that the device (7, 23, 28) is designed to acquire a number of measurements by the measuring instrument starting from the first interaction date or acquisition date up until the second interaction date or up until the second acquisition date, the device (7, 23, 28) being further designed to ascertain a spatial separation of two different measurements by the measuring instrument for the known set speed of the axis of motion of the machine (1, 33) by the acquisition of the number of measurements. the measuring set-up being designed to be arranged on a workpiece receptacle of the machine (1, 33), the measuring instrument being designed to be arranged on a tool receptacle of the machine (1, 33), the measuring instrument being designed to carry out measurements at a known set frequency, the device (7, 23, 28) being so designed that when, in the state where the device (7, 23, 28) is arranged on the machine (1, 33), the measuring instrument is moved from the first measuring element to the second measuring element at a known set speed of an axis of motion of the machine (1, 33) the device (7, 23, 28), in particular the measuring instrument, interacts with the respective measuring element (20, 21) or the device (7, 23, 28), in particular the measuring instrument, detecting the respective measuring element (20, 21), and the device (7, 23, 28) ascertaining, in each instance, an interaction date or an acquisition date, characterized in that the device (7, 23, 28) is designed to acquire a number of measurements by the measuring instrument starting from the first interaction date or acquisition date up until the second interaction date or up until the second acquisition date, the device (7, 23, 28) being further designed to ascertain a spatial separation of two different measurements by the measuring instrument for the known set speed of the axis of motion of the machine (1, 33) by the acquisition of the number of measurements.