Welcome to our calculator for the moment of inertia for an I-section. Enter the height (**H**) and width (**B**) of your section below, as well as your flange (**tf**) and web (**tw**) width, and see the results in the output section below.

This tool calculates **Ixx** and **Iyy** about the centroidal axis. The tool is for symmetrical I-Beams, where both flanges are the same size.

The moment of inertia of an I-section can be calculated using the equations shown to the right. **B** represents the section's width, and H is its height. **tw** is the thickness of the web and **tf** is the thickness of the flanges.

Enter your inputs, and see outputs for **Ixx** and **Iyy** and section dimensions below!

H

:120mm

B

:100mm

tf

:13mm

tw

:13mm

Ixx (mm4)

:8378266

Iyy (mm4)

:2183876.5

Area

:3822mm2

xc

:50mm

yc

:60mm

💬 We'd love your feedback on this template! It takes 1min