Moment of Inertia Calculation for Rectangular Section with Hole

This calculator computes the moments of inertia (Ix, Iy, Ipolar) of a rectangular section with a hole. You can input the width and height of the section and hole, and obtain key properties — moments of inertia about horizontal and vertical axes, polar moment, area, and centroid coordinates. All this without complicated formulas or manual calculations. The calculator is suitable both for engineers performing structural analysis and for anyone wanting to check ideas. It works directly in the browser, requires no registration, and keeps distractions away. Just enter parameters and focus on the task, not on technical details.