Free tool

Metal weight calculator

Work out the weight of plate, sheet, bar, tube and angle in steel, stainless, aluminium, brass and copper. Enter your sizes in millimetres and the weight updates as you type.

Shape
Weight
113.04 kgeach
Total for 1
113.04 kg
Per square metre
39.25 kg

Using 7.85 g/cm³ for Mild steel (Gr 250).

Price this plate cut

Cut from our stock and delivered Australia-wide.

Plate weights for every thickness we stock

Every thickness we stock, with its weight per square metre and the weight of a full 2400 × 1200 mm sheet.

Aluminium 50051.6 to 6 mm
ThicknessPer m²2400 × 1200 sheet
1.6 mm4.32 kg12.4 kg
3 mm8.10 kg23.3 kg
4 mm10.80 kg31.1 kg
5 mm13.50 kg38.9 kg
6 mm16.20 kg46.7 kg
Aluminium 50833 to 25 mm
ThicknessPer m²2400 × 1200 sheet
3 mm7.98 kg23.0 kg
4 mm10.64 kg30.6 kg
5 mm13.30 kg38.3 kg
6 mm15.96 kg46.0 kg
8 mm21.28 kg61.3 kg
10 mm26.60 kg76.6 kg
12 mm31.92 kg91.9 kg
16 mm42.56 kg122.6 kg
20 mm53.20 kg153.2 kg
25 mm66.50 kg191.5 kg
Aluminium 6061-T64.76 to 25.4 mm
ThicknessPer m²2400 × 1200 sheet
4.76 mm12.85 kg37.0 kg
6.35 mm17.14 kg49.4 kg
7.94 mm21.44 kg61.7 kg
9.53 mm25.73 kg74.1 kg
12.7 mm34.29 kg98.8 kg
15.88 mm42.88 kg123.5 kg
19.05 mm51.44 kg148.1 kg
25.4 mm68.58 kg197.5 kg
Stainless 3043 to 25 mm
ThicknessPer m²2400 × 1200 sheet
3 mm24.00 kg69.1 kg
4 mm32.00 kg92.2 kg
5 mm40.00 kg115.2 kg
6 mm48.00 kg138.2 kg
8 mm64.00 kg184.3 kg
10 mm80.00 kg230.4 kg
12 mm96.00 kg276.5 kg
16 mm128.00 kg368.6 kg
20 mm160.00 kg460.8 kg
25 mm200.00 kg576.0 kg
Stainless 3166 to 16 mm
ThicknessPer m²2400 × 1200 sheet
6 mm48.00 kg138.2 kg
8 mm64.00 kg184.3 kg
10 mm80.00 kg230.4 kg
12 mm96.00 kg276.5 kg
16 mm128.00 kg368.6 kg
Mild steel (Gr 250)5 to 25 mm
ThicknessPer m²2400 × 1200 sheet
5 mm39.25 kg113.0 kg
6 mm47.10 kg135.6 kg
8 mm62.80 kg180.9 kg
10 mm78.50 kg226.1 kg
12 mm94.20 kg271.3 kg
16 mm125.60 kg361.7 kg
20 mm157.00 kg452.2 kg
25 mm196.25 kg565.2 kg
Brass0.8 to 6 mm
ThicknessPer m²2400 × 1200 sheet
0.8 mm6.80 kg19.6 kg
1 mm8.50 kg24.5 kg
1.2 mm10.20 kg29.4 kg
1.6 mm13.60 kg39.2 kg
2 mm17.00 kg49.0 kg
2.5 mm21.25 kg61.2 kg
3 mm25.50 kg73.4 kg
4 mm34.00 kg97.9 kg
5 mm42.50 kg122.4 kg
6 mm51.00 kg146.9 kg
Copper0.7 to 4 mm
ThicknessPer m²2400 × 1200 sheet
0.7 mm6.27 kg18.1 kg
0.9 mm8.06 kg23.2 kg
1.2 mm10.75 kg31.0 kg
1.6 mm14.34 kg41.3 kg
2 mm17.92 kg51.6 kg
3 mm26.88 kg77.4 kg
4 mm35.84 kg103.2 kg

How to work out metal weight

Weight is volume times density. For a plate, multiply width, length and thickness to get the volume, then multiply by the metal's density.

Example: a 300 × 200 mm plate of 6 mm mild steel. 300 × 200 × 6 = 360,000 mm³, which is 360 cm³. At 7.85 g/cm³ that's 2,826 g, or 2.83 kg.

A shortcut for plate: the weight of one square metre in kilograms is the thickness in millimetres times the density. 10 mm mild steel is 10 × 7.85 = 78.5 kg per square metre.

Densities we use

These are the densities our quotes use to weigh every part.

Metalg/cm³kg/m³
Aluminium 50052.72,700
Aluminium 50832.662,660
Aluminium 6061-T62.72,700
Stainless 30488,000
Stainless 31688,000
Mild steel (Gr 250)7.857,850
Brass8.58,500
Copper8.968,960

The weight of a cut part

A cut part weighs less than the plate it comes from, because holes and cut-outs weigh nothing. Upload your drawing and the quote shows each part's weight, worked out from its actual outline.

Questions

How heavy is a 2400 × 1200 sheet of 3 mm aluminium?

About 23.3 kg in 5005 grade. That's 2.88 square metres at 8.1 kg per square metre.

How much does 10 mm steel plate weigh per square metre?

78.5 kg for mild steel. Stainless is about 80 kg and aluminium about 27 kg.

Is stainless steel heavier than mild steel?

A little. Stainless is about 8.0 g/cm³ and mild steel 7.85, so stainless is about 2% heavier. Aluminium is about a third the weight of steel.

Are these weights exact?

They're nominal. Real plate and bar vary a little in thickness within the mill's tolerance, so allow a few percent either way.

Does weight change the delivery price?

Yes. Delivery is priced at checkout by weight and address, with Australia Post. Parts over 1000 mm long, or orders over 22 kg, are too big for Australia Post, and checkout offers to quote freight for those.

Got a drawing?

Upload it for an instant price, with each part's weight worked out from its outline.

Get an instant quote