Welcome to our moment of inertia calculator for a triangular section. Enter the height (H) and width (B) of your section below, and see the results in the output section below.

This tool calculates **Ixx** and **Iyy** about the centroidal axis.

H

:150mmb2>0 if angle α is acute (<90°)

B1

:500mmb2<0 if angle α is obtuse (>90°)

B2

:123mmb2=0 for right triangle

Ixx (mm4)

:46875000

Iyy (mm4)

:424227083

Area

:37500mm2

xc

:207.666667mm

yc

:50mm

alpha

:13.8203395deg

The moment of inertia of a triangular section can be calculated using the equations shown to the right. B1 represents the section's width, and H is its height.

b2>0 if angle α is acute (<90°)

b2<0 if angle α is obtuse (>90°)

b2=0 for right triangle