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