MEASUREMENTMetal & SteelConstruction Calculator
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Metal-Weight-by-Shape

Calculate metal weight for bars, tubes, angles, channels, beams. Weight = Volume × Density. Supports steel, aluminum, copper, brass. Essential for ordering and shipping.

Concept Fundamentals
0.2836 lb/in³
Carbon Steel
0.289 lb/in³
Stainless 304
0.0975 lb/in³
Aluminum 6061
formula
Volume × ρ
Calculate Metal WeightSelect metal type, shape, and enter dimensions.

Why This Construction Metric Matters

Why: Accurate metal weight prevents overloading, ensures correct shipping costs, and supports structural calculations.

How: Volume by shape (bar: πr²L; tube: π(R²−r²)L; angle: cross-section×L). Multiply by material density. AISC and Aluminum Association publish densities.

  • ●Carbon steel ~0.284 lb/in³; stainless ~0.289; aluminum ~0.098.
  • ●Tube: use outer and inner diameter; hollow reduces weight.
  • ●Angle: (A×T) + ((B−T)×T) for L-shape cross-section.
  • ●Add 5–10% for welding, cutting waste when ordering.
Sources:AISC Steel ManualAluminum Association

Metal Weight Calculator

Bars • Tubes • Angles • Channels • Beams • Cost estimation

Quick Examples — Click to Load

⬤

Steel Round Bar

1" diameter × 6 ft carbon steel

◯

Aluminum Tube

2" OD × 0.125" wall × 4 ft

▬

Stainless Flat Bar

2" × 0.25" × 3 ft 304 SS

∟

Steel Angle Iron

2" × 2" × 0.25" × 10 ft

◯

Copper Pipe

1.5" OD × 0.065" wall × 10 ft

⬤

Brass Round Rod

0.75" diameter × 12" brass

▢

Steel Square Tube

2" × 0.125" wall × 8 ft

⚙️

Custom Metal

Enter your own dimensions

🏭

Carbon Steel

Standard structural steel, most common type

Density: 0.2836 lbs/cu inCorrosion: Low$0.30-0.60/lb

📐 Select Shape

📏 Dimensions (inches)

📦 Quantity & Pricing

Planning estimates only. Verify with a licensed engineer or contractor before construction.

📐 Construction Industry Facts

🔩

Carbon steel density ~0.2836 lb/in³ (7850 kg/m³).

— AISC

⚙️

Stainless 304/316: ~0.289 lb/in³ (8000 kg/m³).

— ASTM

⚖️

Aluminum ~1/3 the density of steel for same volume.

— Aluminum Association

📐

I-beam weight from AISC tables or cross-section × length × density.

— AISC

What is a Metal Weight Calculator?

A metal weight calculator determines the weight of metal stock based on its shape, dimensions, and material type. This is essential for material ordering, shipping cost estimation, structural calculations, and inventory management. Different metals have vastly different densities, making accurate calculations critical for project planning.

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Accurate Weight

Calculate by shape and material

🔧

Multiple Shapes

Bars, tubes, angles, channels

🏭

Metal Database

Steel, aluminum, copper, brass

💰

Cost Estimation

Price per pound calculations

How to Calculate Metal Weight

Basic Formula

Weight = Volume × Density

First calculate volume from dimensions, then multiply by material density

Common Densities

Steel: 0.284 lbs/cu in (7,850 kg/m³)
Aluminum: 0.098 lbs/cu in (2,700 kg/m³)
Copper: 0.323 lbs/cu in (8,940 kg/m³)
Brass: 0.307 lbs/cu in (8,500 kg/m³)

When to Use

📦 Ordering

  • • Material quantities
  • • Shipping weight
  • • Inventory

🏗️ Structural

  • • Load calculations
  • • Beam sizing
  • • Design

💰 Cost

  • • Price per lb
  • • Budget estimates
  • • Bidding

Metal Types Reference

MetalDensity (lbs/cu in)Corrosion ResistanceCommon Uses
Carbon Steel0.2836LowStructural beams, Machinery
Stainless Steel 3040.289ExcellentFood equipment, Chemical tanks
Stainless Steel 3160.289SuperiorMarine hardware, Chemical processing
Aluminum 60610.0975GoodAircraft, Bicycle frames
Aluminum 70750.1014FairAerospace, Military
Copper0.323GoodElectrical wiring, Plumbing
Brass0.307GoodFittings, Decorative
Bronze0.32ExcellentBearings, Marine hardware

Shape Volume Formulas

Bar: W × H × L
Tube: π × (R² − r²) × L
Angle: (W + H − t) × t × L
Channel: Complex cross-section

Key Formulas

Weight = Volume × Density
Cost = Weight × Price per lb

Important Considerations

⚠️ Avoid

  • • Using wrong density for alloy
  • • OD vs ID confusion on tubes
  • • Ignoring wall thickness

✓ Best Practices

  • • Use actual dimensions (not nominal)
  • • Add 2–5% for cutting waste
  • • Verify alloy density

⚠️ Disclaimer: Weight estimates are for planning. Actual weights vary with alloy, tolerances, and surface finish. Verify with supplier for critical applications.

👈 START HERE
⬅️Jump in and explore the concept!
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