Position measuring device comprising a scale having a first measurement graduation (12.1) and a second measurement graduation (12.2), a first scanning unit (14.1) assigned to the first measurement graduation (12.1) for scanning the first measurement graduation (12.1), a second scanning unit (14.2) assigned to the second measurement graduation (12.2) for scanning the second measurement graduation (12.2), and a third scanning unit (14.3) assigned to the second measurement graduation (12.2) for scanning the second measurement graduation (12.2), the first measurement graduation (12.1) comprising a sequence of graduation structures which each extend parallel to a first direction, the second measurement graduation (12.2) comprising a sequence of graduation structures which each extend parallel to a second direction, the first and second directions (P1, P2) each running at an angle (α, β) different from 0° with respect to a longitudinal axis of the scale, the position measuring device having the first, second and third scanning units (14.1 - 14.3), the position measuring device having a fourth scanning unit (14.4) assigned to the first or second measurement graduation (12.1, 12.2) for scanning the first or second measurement graduation (12.1, 12.2), respectively, characterized in that, if the fourth scanning unit (14.4) is assigned to the first measurement graduation (12.1) for scanning the first measurement graduation (12.1), a first connecting straight line, running through scanning locations of the first and fourth scanning units (14.1, 14.4) and a second connecting straight line running through scanning locations of the second and third scanning units (14.2, 14.3) form a predetermined angle (γ) with respect to one another, the predetermined angle (γ) being not equal to a sum of the angle (α) of the first direction and the angle (β) of the second direction, and, if the fourth scanning unit (14.4) is assigned to the second measurement graduation (12.2) for scanning the second measurement graduation (12.2), the scanning locations of the second to fourth scanning units (14.2 - 14.4) do not lie on a common connecting straight line and a perpendicular distance between the scanning location of the fourth scanning unit (14.4) and a connecting straight line running through scanning locations of the second and third scanning units (14.2, 14.3) is greater than 1 mm. a scale having a first measurement graduation (12.1) and a second measurement graduation (12.2), a first scanning unit (14.1) assigned to the first measurement graduation (12.1) for scanning the first measurement graduation (12.1), a second scanning unit (14.2) assigned to the second measurement graduation (12.2) for scanning the second measurement graduation (12.2), and a third scanning unit (14.3) assigned to the second measurement graduation (12.2) for scanning the second measurement graduation (12.2), the first measurement graduation (12.1) comprising a sequence of graduation structures which each extend parallel to a first direction, the second measurement graduation (12.2) comprising a sequence of graduation structures which each extend parallel to a second direction, the first and second directions (P1, P2) each running at an angle (α, β) different from 0° with respect to a longitudinal axis of the scale, the position measuring device having the first, second and third scanning units (14.1 - 14.3), the position measuring device having a fourth scanning unit (14.4) assigned to the first or second measurement graduation (12.1, 12.2) for scanning the first or second measurement graduation (12.1, 12.2), respectively, characterized in that, if the fourth scanning unit (14.4) is assigned to the first measurement graduation (12.1) for scanning the first measurement graduation (12.1), a first connecting straight line, running through scanning locations of the first and fourth scanning units (14.1, 14.4) and a second connecting straight line running through scanning locations of the second and third scanning units (14.2, 14.3) form a predetermined angle (γ) with respect to one another, the predetermined angle (γ) being not equal to a sum of the angle (α) of the first direction and the angle (β) of the second direction, and, if the fourth scanning unit (14.4) is assigned to the second measurement graduation (12.2) for scanning the second measurement graduation (12.2), the scanning locations of the second to fourth scanning units (14.2 - 14.4) do not lie on a common connecting straight line and a perpendicular distance between the scanning location of the fourth scanning unit (14.4) and a connecting straight line running through scanning locations of the second and third scanning units (14.2, 14.3) is greater than 1 mm.