Steel Angle Weight Calculator

Enter leg dimensions, thickness, and length of a steel angle (L-bar), choose material, and get the weight in kg and lbs instantly.

Angle Dimensions

Set equal to Leg A for equal-leg angles.

Formula Reference

Area = t × (A + B − t)
Weight = Area × Length × ρ

Where A = Leg A (m), B = Leg B (m), t = thickness (m), L = length (m), ρ = density (kg/m³).

L-Section Diagram

Leg A Leg B t

Enter angle dimensions on the left and click Calculate.

Common Material Densities

Material kg/m³ lb/in³
Carbon Steel78500.284
Stainless 30479300.286
Stainless 31680000.289
Cast Iron72000.260
Copper89600.324
Brass85000.307
Aluminum27000.098
Titanium45000.163
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Summary

Enter leg dimensions, thickness, and length of a steel angle (L-bar), choose material, and get the weight in kg and lbs instantly.

How it works

  1. Enter Leg A (the horizontal leg) in your preferred unit.
  2. Enter Leg B (the vertical leg) — use the same value as Leg A for equal-leg angles.
  3. Enter the thickness of the angle walls.
  4. Enter the total bar length.
  5. Select the material from the dropdown; choose "Custom Density" to enter your own value.
  6. Optionally enter a quantity for multiple angle bars.
  7. Click Calculate — the tool applies Weight = t × (A + B − t) × Length × Density and shows results in kg and lbs.

Use cases

  • Estimating structural steel weight for frames, brackets, and supports.
  • Calculating freight weight for L-bar orders.
  • Comparing weight of equal-leg vs. unequal-leg angles for design optimization.
  • Bill of materials (BOM) preparation for fabrication and manufacturing.
  • Checking load limits for lifting and rigging equipment.
  • Verifying theoretical weight against mill certificates.
  • Academic and exam calculations involving structural steel sections.
  • Cost estimation when pricing steel by weight.

Frequently Asked Questions

Last updated: 2026-06-21 · Reviewed by Nham Vu