I run a GURPS game and have noticed that the ruler gives incorrect numbers when measuring hex grid.  I have my page set up as: Size: 25x25 Scale 1 unit = 3 ft. Grid: 1 unit, Hex (V) Measuring from one hex to the next gives 3.2 ft., 2 - 6.4, 3 - 9.7... Setting the scale to 1 (m, since there is no yard option) gives 1.1, 2.1, 3.2, 4.3, 5.4 ... 12.9, 14