What density is used for aluminum?

The default density is 2.70 g/cm³ (about 0.0975 lb/in³), which applies to common alloys such as 6061 and 6063. The density input and label convert with the selected unit system.

How is the cross-sectional area calculated?

The area is computed as (A + B − t) × t, where A and B are the leg widths and t is the thickness. This subtracts the corner overlap counted twice when you add both legs.

Can I calculate weight for unequal angle bars?

Yes. Simply enter different values for Leg A and Leg B. The formula works for both equal and unequal angle sections.

What units are supported?

You can work in millimeters / meters / kilograms or inches / feet / pounds. Switch the unit system with the toggle and results update instantly.

Is there a linear weight (kg/m) output?

Yes. The calculator displays both the total weight and the linear weight per unit length, which is useful for ordering stock material.

Is aluminum angle as strong as steel?

No. Steel is about three times stiffer and stronger than aluminum, but aluminum is roughly one-third the density (2.70 vs 7.85 g/cm³). A same-size aluminum angle weighs far less, so it is chosen where weight and corrosion resistance matter more than peak strength.

Aluminum Angle Weight Calculator

Enter the leg widths, thickness, and length of an aluminum angle bar to instantly calculate its weight.

Angle Bar Dimensions

Unit system:

Leg A width (mm)

Leg B width (mm)

Thickness (mm)

Bar length (m)

Density (g/cm³ — default 2.70 for 6061/6063)

Cross-Section Diagram

Enter dimensions and click Calculate

Summary

Enter the leg widths, thickness, and length of an aluminum angle bar to instantly calculate its weight.

How it works

Enter the width of leg A and leg B (can be equal for equal-angle bars).
Enter the thickness of the angle bar material.
Enter the total length of the bar.
Select your preferred unit system (metric or imperial).
The calculator computes the cross-sectional area, subtracts the overlapping corner, and multiplies by length and aluminum density to give weight.

Use cases

Estimate shipping weight of aluminum structural profiles.
Calculate material cost by weight for fabrication projects.
Verify supplier weight specifications for L-section stock.
Plan load-bearing capacity in light structural frames.
Compare equal vs. unequal leg angle options by weight.
Quick field estimation for construction and manufacturing.

Frequently Asked Questions

Last updated: 2026-09-19 · Reviewed by Nham Vu