This is the Hollow Beam (Rectangular) Moment of Inertia Calculator. Simply enter the length of the two side of the rectangular beam to find the moment of inertia.

B =
H =
b =
h =
b is the inner length of the side of the rectangle which is always parallel to bending axis. h is the inner length of the side of the rectangle which is always perpendicular to bending axis. B is the outer length of the side of the rectangle which is always parallel to bending axis. H is the outer length of the side of the rectangle which is always perpendicular to bending axis.