Steel Weight Calculator
Knowing the weight of steel components is essential for structural engineering, shipping estimates, and material ordering. This calculator computes the weight of common steel shapes (plates, round bars, pipes, and angle iron) from their dimensions using the standard mild steel density of 490 lb/ft³.
The weight of any steel piece is calculated as Weight = Volume x Density. For mild/carbon steel, the standard density is 490 pounds per cubic foot (0.2836 lb/in³ or 7,850 kg/m³). Stainless steel is slightly heavier at about 500-510 lb/ft³.
Each shape has its own volume formula: plates use length x width x thickness, round bars use the cylinder formula πr²L, pipes subtract the inner cylinder from the outer, and angle iron combines two rectangular legs minus the corner overlap.
The calculator also provides weight per linear foot, which is useful for comparing sizes and estimating material costs. Steel suppliers often list products by their per-foot weight, so this value helps verify you're ordering the correct size.