Polar Moment of Inertia Calculator Created By : Abhinandan Kumar Reviewed By : Rajashekhar Valipishetty Last Updated : May 17, 2023 Select shape Solid circular section Hollow circular section Outer radius (R) Meter (m) Feet (ft) Centi-meter (cm) millimeters (mm) Inch (in) Outer diameter (D) Meter (m) Feet (ft) Centi-meter (cm) millimeters (mm) Inch (in) Polar moment of inertia (J) Meter to power fourth (m⁴) Feet to power fourth (ft⁴) Centi-meter to power fourth (cm⁴) millimeters to power fourth (mm⁴) --> Inch to power fourth (in⁴) Calculate Reset