# Metal Weight Calculator

Calculate the weight of metal plates, round bars, and tubes. Supports steel, aluminum, copper, brass, titanium, and stainless steel.

## What this calculates

Knowing the weight of metal is essential for structural engineering, shipping estimates, crane capacity planning, and material cost calculations. This calculator determines the weight of plates, round bars, and tubes in six common metals using precise density values and simple geometry.

## Inputs

- **Metal Type** — options: Carbon Steel, Stainless Steel (304), Aluminum (6061), Copper, Brass, Titanium — Select the type of metal
- **Shape** — options: Plate / Sheet / Flat Bar, Round Bar / Rod, Round Tube / Pipe — Cross-section shape of the metal piece
- **Length** (in) — min 0.1, max 1200 — Length of the piece
- **Width / Outer Diameter** (in) — min 0.01, max 120 — Width (plate) or outer diameter (round/tube)
- **Thickness / Wall Thickness** (in) — min 0.01, max 12 — Plate thickness or tube wall thickness

## Outputs

- **Weight** (lbs) — Weight in pounds
- **Weight** (kg) — Weight in kilograms
- **Volume** (in³) — Total material volume
- **Weight per Foot** (lbs/ft) — Unit weight per linear foot

## Details

Metal weight is calculated as Weight = Volume × Density. The volume depends on the shape: plates use length × width × thickness, round bars use πr² × length, and tubes use the difference between the outer and inner cylinder volumes. Density values used are industry-standard values at room temperature.

Standard densities (lbs/in³): Carbon Steel 0.284, Stainless 304 0.289, Aluminum 6061 0.098, Copper 0.323, Brass 0.307, Titanium 0.163. Aluminum weighs about one-third of steel, making it popular for weight-sensitive applications. Copper and brass are significantly heavier than steel.

For ordering purposes, metal stock is typically priced by weight (per pound) or by the piece at standard lengths. Knowing the weight helps you estimate shipping costs, verify deliveries, and ensure your structure or vehicle can support the load. Always add 5-10% to your quantity for cutting waste and machining tolerances.

## Frequently Asked Questions

**Q: How much does a 4x8 sheet of steel weigh?**

A: A 4x8-foot (48" x 96") steel plate weighs approximately 10.9 lbs per 1/16-inch of thickness. Common weights: 1/16" (16 ga) = 10.9 lbs, 1/8" (11 ga) = 21.8 lbs, 3/16" = 32.7 lbs, 1/4" = 43.6 lbs, 3/8" = 65.4 lbs, 1/2" = 87.2 lbs.

**Q: How much lighter is aluminum than steel?**

A: Aluminum weighs about 34.5% as much as steel. A part that weighs 10 lbs in steel would weigh about 3.45 lbs in aluminum. However, aluminum has roughly one-third the strength of mild steel, so aluminum parts often need to be thicker, partially offsetting the weight savings.

**Q: What is the difference between round bar weight and pipe weight?**

A: Round bar is solid; its weight uses the full circular cross-section. Pipe and tube are hollow; their weight is based on the annular (ring) cross-section determined by outer diameter minus inner diameter. A 2-inch solid round bar weighs about 3.4 lbs/ft in steel, while a 2-inch pipe with 0.154-inch wall weighs about 3.65 lbs/ft.

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Source: https://vastcalc.com/calculators/construction/metal-weight
Category: Construction
Last updated: 2026-04-21