Steel Weight Calculator

Calculate the theoretical weight of specialized steel profiles including plates, round bars, square bars, and hollow structural sections (HSS).

Profile Geometry

Unit System

Structural Profile

Length (in)

Width (in)

Thk (in)

Weight Estimates

Sizing your payload?

Select your steel shape and enter the dimensions to calculate the theoretical shipping weight.

Overview

Engineering steel weight calculations rely on the consistent density of the material (typically standard carbon steel). This calculator handles both solid and hollow (tubular) profiles by calculating the cross-sectional area and multiplying by the total length. This is essential for determining structural loading, rigging requirements, and transport logistics for fabrication projects.

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Pro Tips

For hollow sections like 'Square Tube', ensure you are entering the Outer width and the Wall Thickness independently.
In metric regions, rebar and structural sections are often designated by their mass per meter (kg/m) for quick manual calculations.
rigging note: Always assume a +5% margin for real-world steel weight due to mill tolerances and protective coatings.

Fun Facts

"The theoretical density of mild carbon steel is 0.2833 lbs/in³ (7,850 kg/m³)."
"Structural steel is often sold by weight, with standard prices quoted per 'Hundredweight' (cwt) or per Metric Ton."
"Stainless steel (typically 300-series) is slightly denser (~0.289 lbs/in³) than standard carbon steel due to chromium/nickel content."

Formula: Weight (lbs) = [Area (in²) × Length (in)] × 0.2833 lbs/in³

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