Hello everyone: I actually can't understand the tutorial of calculating the inertia and want to make sure about my calculations I have a box 1.4 x 1.2 x 1.0 meters material is wood with density 690 kg/m3 I've used the equation mentioned in list of moments of inertia (https://en.wikipedia.org/wiki/List_of_moments_of_inertia) I got the following values ixx = 19.0302 ixy = 0 ixz = 0 iyy = 14.007 iyz = 0 izz = 32.844

values seem to be higher than other examples that I've investigated. that's why i doubt this may be right. Does anyone know if my calculations are right or wrong ?