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Aluminium Circle & Disc Weight Calculator

Enter the diameter and thickness, choose the alloy, and get the weight of each circle and of the whole order. Switch to ring mode for discs with a centre hole.

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Total weight0.00 kg—
Per piece
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Per metre
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How it works

How the weight is calculated

A circle is a thin cylinder. Its weight is the disc area (π/4 × D²) × thickness × density. For a ring, subtract the area of the centre hole.

Circle weight formulas

Solid circle
π/4 × D² × t × density
Ring / washer
π/4 × (D² − d²) × t × density
1050 shortcut
0.002125 × D² × t grams, sizes in mm

Worked example: 1050 circle, Ø300 × 2 mm: π/4 × 0.3² × 0.002 × 2705 = 0.38 kg.

Reference data

Aluminium alloy densities used in the calculator

The calculator multiplies volume by the typical density of the selected alloy. These are the values it uses. Values are typical figures from published alloy data; the mill test certificate for your lot is the final reference.

10502.705 g/cm³2705 kg/m³
10602.705 g/cm³2705 kg/m³
10702.70 g/cm³2700 kg/m³
11002.71 g/cm³2710 kg/m³
13502.705 g/cm³2705 kg/m³
20112.83 g/cm³2830 kg/m³
20142.80 g/cm³2800 kg/m³
20172.79 g/cm³2790 kg/m³
20242.78 g/cm³2780 kg/m³
22192.84 g/cm³2840 kg/m³
2A122.78 g/cm³2780 kg/m³
30032.73 g/cm³2730 kg/m³
30042.72 g/cm³2720 kg/m³
30052.73 g/cm³2730 kg/m³
31052.72 g/cm³2720 kg/m³
50052.70 g/cm³2700 kg/m³
50522.68 g/cm³2680 kg/m³
50832.66 g/cm³2660 kg/m³
50862.66 g/cm³2660 kg/m³
51822.65 g/cm³2650 kg/m³
54542.69 g/cm³2690 kg/m³
57542.67 g/cm³2670 kg/m³
5A062.64 g/cm³2640 kg/m³
6005A2.70 g/cm³2700 kg/m³
60602.70 g/cm³2700 kg/m³
60612.70 g/cm³2700 kg/m³
60632.69 g/cm³2690 kg/m³
60822.70 g/cm³2700 kg/m³
61012.69 g/cm³2690 kg/m³
70052.78 g/cm³2780 kg/m³
70202.78 g/cm³2780 kg/m³
70502.83 g/cm³2830 kg/m³
70752.81 g/cm³2810 kg/m³
Getting it right

Why the delivered weight differs from the theoretical weight

Dimensional tolerance

Mills supply to a tolerance band, not the exact nominal size. Plate on the plus side of its thickness tolerance can weigh 2–5% more than the calculated figure.

Alloy and temper

Density varies with the alloying elements, from about 2.64 g/cm³ for 5A06 to 2.83 g/cm³ for 7050 and 2011. Temper has no practical effect on density.

Cladding and coatings

Alclad layers, anodising, paint, PVC film and interleaving paper add small amounts of weight. Coated coil and sheet are usually quoted by net metal weight.

Packing and pallets

Freight is charged on gross weight. Wooden cases, pallets, steel strapping and coil cores typically add 3–8% on top of the metal.

Next step

What to send for a fast quotation

Weight is only the first step. To quote firm prices and availability, Metline needs:

  • Alloy and temper, for example 6061-T6 or 5083-H116
  • Exact dimensions with tolerances, or the governing standard (ASTM B209, EN 485, IS 737)
  • Quantity in pieces or kilograms, and whether cut-to-size is needed
  • Surface, protective film or finish requirements
  • Inspection documents: mill test certificate to EN 10204 3.1, third-party inspection
  • Delivery location in India or export port, and the date you need the material

Email the details to sales@metline.in or use the enquiry form. The quote button in the calculator carries your sizes into the form automatically.

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FAQ

Frequently asked questions

How many aluminium circles are in one tonne?

Divide 1,000 kg by the weight of one circle. A Ø300 × 2 mm 1050 circle weighs about 0.38 kg, so one tonne contains roughly 2,600 pieces.

Why do cookware circles come in 1050, 1060 and 3003?

These alloys draw and spin well without cracking. 3003 gives slightly higher strength, while 1050 and 1060 offer the best formability. Their densities are almost identical, so weight hardly changes between them.

How accurate is this aluminium weight calculator?

It gives the theoretical weight from nominal dimensions and the typical density of the alloy. Real material is within a tolerance band, so delivered weight usually differs by a few percent. Use the result for budgeting, handling and freight planning, and rely on the weighbridge or packing list for invoicing.

What density does the calculator use for aluminium?

Each alloy has its own typical density, from 2.64 g/cm³ (5A06) to 2.84 g/cm³ (2219). If your alloy is not listed, choose "Other alloy" and enter the density from its data sheet. Pure aluminium is 2.70 g/cm³.

Can I use inches or feet?

Yes. Every dimension has its own unit selector (mm, cm, m, in or ft), so you can mix units, such as a width in inches and a length in feet. The result is always shown in kilograms and pounds.

Is the weight per piece or for the whole order?

Both. Enter the number of pieces and the calculator shows the total weight, the weight of each piece and the weight per running metre.

Know the weight? Get the price.

Send the alloy, size and quantity from your calculation. Our Mumbai team will reply with availability, lead time and a competitive quote.

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