Moment of Inertia Section Calculator Section Calculator – Square Tube Section April 22, 2016April 22, 2016 admin Cross Section Area, Moment of inertia, Moment of Inertia Calculator, Radius of gyration, Section Calculator, Section Modulus, Square Tube Section W T C L Rectangle HRectangle HSquare Square Pipe Circle SemiCircle Triangle Dimension a: Dimension b: Area is: Moment of Inertia is: Section Modulus is: Radius of Gyration is: Calculate Moment of Inertia for a Square Tube section, find cross sectional area, section modulus and radius of gyration for a Square Tube shape beam.