Aluminium weight calculator for every alloy and shape.
Aluminium weighs about 2.70 g/cm³, roughly a third of steel. A 2 mm aluminium sheet weighs 5.40 kg/m², so a 1,250 × 2,500 mm sheet weighs 16.9 kg, and a 25 mm 6061 round bar weighs 1.33 kg per metre. Choose the shape and alloy below, or use the charts further down.
Material detailsDensity: 7.85 g/cm³
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Theoretical weight from nominal size and density. Actual weight varies within mill tolerances.
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Density of aluminium alloys
Aluminium sheet and plate weight
Weight per square metre for 1050 / 1100 (2.71), 5052 (2.68) and 6061 / 6082 (2.70 g/cm³), and per sheet at 2.70 g/cm³.
| Thickness | 1050 kg/m² | 5052 kg/m² | 6061 kg/m² | 8 × 4 ft sheet, kg | 1,250 × 2,500, kg |
|---|---|---|---|---|---|
| 0.5 mm | 1.36 | 1.34 | 1.35 | 4.02 | 4.22 |
| 0.8 mm | 2.17 | 2.14 | 2.16 | 6.43 | 6.75 |
| 1 mm | 2.71 | 2.68 | 2.70 | 8.04 | 8.44 |
| 1.2 mm | 3.25 | 3.22 | 3.24 | 9.64 | 10.13 |
| 1.5 mm | 4.07 | 4.02 | 4.05 | 12.06 | 12.66 |
| 2 mm | 5.42 | 5.36 | 5.40 | 16.07 | 16.88 |
| 2.5 mm | 6.78 | 6.70 | 6.75 | 20.09 | 21.09 |
| 3 mm | 8.13 | 8.04 | 8.10 | 24.11 | 25.31 |
| 4 mm | 10.84 | 10.72 | 10.80 | 32.15 | 33.75 |
| 5 mm | 13.55 | 13.40 | 13.50 | 40.19 | 42.19 |
| 6 mm | 16.26 | 16.08 | 16.20 | 48.22 | 50.63 |
| 8 mm | 21.68 | 21.44 | 21.60 | 64.30 | 67.50 |
| 10 mm | 27.10 | 26.80 | 27.00 | 80.37 | 84.38 |
| 12 mm | 32.52 | 32.16 | 32.40 | 96.45 | 101.25 |
| 16 mm | 43.36 | 42.88 | 43.20 | 128.60 | 135.00 |
| 20 mm | 54.20 | 53.60 | 54.00 | 160.75 | 168.75 |
| 25 mm | 67.75 | 67.00 | 67.50 | 200.93 | 210.94 |
| 30 mm | 81.30 | 80.40 | 81.00 | 241.12 | 253.13 |
| 40 mm | 108.40 | 107.20 | 108.00 | 321.49 | 337.50 |
| 50 mm | 135.50 | 134.00 | 135.00 | 401.87 | 421.88 |
Aluminium bar weight per metre
| Size | 6061 / 6063 round | 7075 round | 6061 square | 6061 hex (AF) |
|---|---|---|---|---|
| 6 mm | 0.076 | 0.079 | 0.097 | 0.084 |
| 8 mm | 0.136 | 0.141 | 0.173 | 0.150 |
| 10 mm | 0.212 | 0.221 | 0.270 | 0.234 |
| 12 mm | 0.305 | 0.318 | 0.389 | 0.337 |
| 16 mm | 0.543 | 0.565 | 0.691 | 0.599 |
| 20 mm | 0.848 | 0.883 | 1.080 | 0.935 |
| 25 mm | 1.325 | 1.379 | 1.688 | 1.461 |
| 30 mm | 1.909 | 1.986 | 2.430 | 2.104 |
| 32 mm | 2.171 | 2.260 | 2.765 | 2.394 |
| 40 mm | 3.393 | 3.531 | 4.320 | 3.741 |
| 50 mm | 5.301 | 5.517 | 6.750 | 5.846 |
| 60 mm | 7.634 | 7.945 | 9.720 | 8.418 |
| 63 mm | 8.417 | 8.759 | 10.716 | 9.281 |
| 75 mm | 11.928 | 12.414 | 15.188 | 13.153 |
| 80 mm | 13.572 | 14.125 | 17.280 | 14.965 |
| 100 mm | 21.206 | 22.070 | 27.000 | 23.383 |
| 125 mm | 33.134 | 34.484 | 42.188 | 36.535 |
| 150 mm | 47.713 | 49.657 | 60.750 | 52.611 |
Formulas: sheet thickness × 2.70 kg/m², round bar D² × 0.002121 kg/m, pipe (OD − t) × t × 0.008482 kg/m. For tube sizes see the aluminium pipe weight chart.
Reference basis: Compiled by Steel Impex India. Check each table’s source, product form and delivery condition before use. Sources, calculation methods and corrections.
Frequently asked questions
What is the density of aluminium?
Pure and 1xxx aluminium is 2.70–2.71 g/cm³, 5052 is 2.68, 5083 2.66, 6061 and 6063 2.70, 2024 2.78 and 7075 2.81 g/cm³. Multiply by 1,000 for kg/m³.
How do you calculate aluminium sheet weight?
Weight (kg) = length (m) × width (m) × thickness (mm) × 2.70. A 1 mm sheet weighs 2.70 kg/m², and an 8 × 4 ft (2,440 × 1,220 mm) sheet of 1 mm weighs 8.04 kg.
How much lighter is aluminium than steel?
Aluminium at 2.70 g/cm³ weighs about 34% of mild steel at 7.85, so a part of the same size is roughly a third of the weight.
What is the weight of aluminium round bar per metre?
D² × 0.002121 kg/m with D in mm, for 6061 / 6063 at 2.70 g/cm³. A 50 mm bar weighs 5.30 kg/m.
Is 7075 heavier than 6061?
Yes, by about 4%: 7075 is 2.81 g/cm³ against 2.70 for 6061, because of its zinc and copper.
Does a lighter aluminium estimate prove it can replace a steel part?
No. A mass comparison does not establish strength, stiffness, fatigue, corrosion or design suitability. A responsible designer must approve any material substitution.