Metal Weight Calculator
Calculate the weight of steel, stainless, aluminum, copper and more — sheet, round bar, pipe, flat bar, square, hex and angle profiles.
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How Metal Weight Is Calculated
Weight = volume × density. The tool computes the volume from your profile's dimensions — sheet/plate (L×W×t), round bar (π·r²·L), pipe (π/4·(OD²−ID²)·L), flat, square, hexagon and equal angle — then applies the material density: steel 7.85, stainless 304 7.93, aluminum 2.70, copper 8.96, brass 8.50, cast iron 7.20 g/cm³ and more. Enter quantity to get the total, and profiles also show kg per meter for quick takeoffs.
Mill tolerance means real bars run ±1-3% from theoretical weight — fine for estimating, ordering and freight planning; weigh for invoicing.
Frequently Asked Questions
How much does a 2000×1000×2 mm steel sheet weigh?
Volume 2000×1000×2 = 4,000,000 mm³ → × 7.85 g/cm³ = 31.4 kg. Handy rule: a 1×2 m sheet weighs 15.7 kg per mm of thickness.
What density should I use for stainless steel?
304/316 austenitic stainless is about 7.93-8.00 g/cm³ — roughly 1-2% heavier than mild steel's 7.85. The tool uses 7.93 for 304.
Why does my delivered material weigh slightly different?
Rolling tolerances on thickness and diameter cause ±1-3% deviation from theoretical weight. Trade is often done on theoretical weight for sections and actual (scale) weight for plate — check your supplier's basis.
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Metal Weight Calculator