Moment of Inertia (Rectangle)
Calculate moment of inertia for a rectangular cross section. I = bh³/12. Free, instant.
How to Use Moment of Inertia (Rectangle)
1
Enter width and height of rectangle.
2
Get moment of inertia.
3
Copy or download your result.
Frequently Asked Questions
Why does height matter more?
Height is cubed in the formula, so doubling height increases I by 8×.