Aluminum Weight Calculator
Profile, tube, sheet and bar weight for 6xxx, 5xxx, 2xxx and 7xxx alloys
Aluminum weighs about one third of steel — 2,700 kg/m³ versus 7,850 kg/m³ — which is exactly why it dominates weight-critical applications from transport to portable structures. This calculator computes the weight of any aluminum profile using the precise density of the selected alloy.
Alloy densities vary more than most people expect: 5083 marine plate is 2,650 kg/m³, general-purpose 6061 and 6082 are 2,700 kg/m³, aerospace 7075 is 2,810 kg/m³, and copper-bearing 2024 is 2,780 kg/m³. For big extrusion or plate orders, selecting the right alloy keeps the estimate honest.
A useful mental anchor: a 6-meter length of 40×40×3 mm aluminum square tube weighs only about 7.2 kg — the same tube in steel is nearly 21 kg. One person can carry aluminum profiles that would need two people or a crane in steel.
Frequently Asked Questions
How much lighter is aluminum than steel?
Aluminum is about 2.9× lighter: 2,700 kg/m³ versus 7,850 kg/m³ for steel. The ratio holds for every profile shape, since it depends only on density.
What is the weight of aluminum sheet per m²?
Aluminum sheet weighs 2.7 kg per square meter per millimeter of thickness. A 2000×1000×2 mm sheet weighs about 10.8 kg — light enough for one person to handle safely.
Do different aluminum alloys weigh differently?
Yes, within a few percent: 5083 is 2,650 kg/m³, 6061/6082 are 2,700 kg/m³, 2024 is 2,780 kg/m³, and 7075 is 2,810 kg/m³. The calculator applies the exact density of the alloy you choose.
How do I calculate aluminum extrusion weight?
For standard shapes, enter the dimensions here and the cross-section is computed automatically. For custom extrusions, take the cross-section area from the die drawing (usually in mm²), convert to m², and multiply by length and 2,700 kg/m³.