If you’re working in the metalworking industry, even you’re engineers, you will try to find one calculator to help you calculate ms plate weight, gi sheet weight, structural steel weight, ms angle weight, mild steel weight, steel bar weight, square tube weight, angle weight, aluminum weight etc.

However, the weight calculation formula is written in the calculator by the developers, you still don’t know whether their formula is correct.

And sometimes, you want to learn the weight calculation formula and remember it in your mind.

In this case, the weight calculator is not suitable for you.

In order to help you quickly find the metal weight formula, I made infographic which is not only practical but also beautiful.

If you want the PDF version of the weight calculation formula, you can save below infographic or bookmark in the web browser.

Contents

- 1 Steel Plate
- 2 Steel Tube
- 3 Round Steel
- 4 Square Steel
- 5 Flat Steel
- 6 Hexagonal Steel
- 7 Rebar
- 8 Flat Steel Tube
- 9 Rectangular Steel Tube
- 10 Equal-leg angle Steel
- 11 Unequal-leg Angle Steel
- 12 Brass Tube
- 13 Copper Tube
- 14 Aluminum Embossed Sheet
- 15 Calculation Method: ratio × thickness = weight / ㎡
- 16 Related Various Theoretical Metal Weight Calculation Formula

**Steel Plate**

- Formula: 7.85×length (m)×width (m)×thickness (mm)
- E.g: 6m (length)×1.51m (width)×9.75mm (thickness)
- Calculation: 7.85×6×1.51×9.75=693.43kg

**Steel Tube**

- Formula: （OD-Wall thickness）×Wall thickness (mm)×0.02466×length (m)
- E.g: 114mm(OD)×4mm (Wall thickness) × 6m (length)
- Calculation: （114-4）×4×0.02466×6=65.102kg

You can also use Tube & Rod Weight Calculator to calculate the weight.

**Round Steel**

- Formula: Dia.mm×Dia.mm×0.00617×length (m)
- E.g: Φ20mm (Dia.)×6m (length)
- Calculation: 20×20×0.00617×6=14.808kg

**Square Steel**

- Formula: Edge width (mm)×Edge width (mm)×length (m)×0.00785
- E.g: 50mm (Edge width)×6m (length)
- Calculation: 50×50×6×0.00785=117.75(kg)

**Flat Steel**

- Formula: Edge width (mm)×thickness (mm)×length (m) × 0.00785
- E.g: 50mm (Edge width) × 5.0mm (thickness)×6m (length)
- Calculation: 50×5×6×0.00785=11.7.75(kg)

**Hexagonal Steel**

- Formula: Edge-to-edge Dia.×Edge-to-edge Dia.× length (m)×0.0068
- E.g: 50mm (Dia.) ×6m (length)
- Calculation: 50×50×6×0.0068=102(kg)

**Rebar**

- Formula: Dia.mm×Dia.mm×0.00617×length (m)
- E.g: Φ20mm(Dia.)×12m (length)
- Calculation: 20×20×0.00617×12=29.616kg

**Flat Steel Tube**

- Formula: (Edge length + Edge width) × 2 × thickness×0.00785×length (m)
- E.g: 100mm×50mm×5mm (thickness)×6m (length)
- Calculation: (100+50) × 2×5×0.00785×6=70.65kg

**Rectangular Steel Tube**

- Formula: Edgewidthmm×4×thickness×0.00785×length(m)
- E.g: 50mm×5mm (thickness)×6m (length)
- Calculation: 50×4×5×0.00785×6=47.1kg

**Equal-leg angle Steel**

- Formula: (Edge width×2-thickness)×thickness×0.00785×length (m)
- E.g: 50mm×50mm×5 thickness×6m(length)
- Calculation: (50×2-5)×5×0.00785×6=22.37kg

**Unequal-leg Angle Steel**

- Formula: (Edge width+Edge width-thickness) × thickness×0.0076×lengthm
- E.g: 100mm×80mm×8 thickness×6m(length)
- Calculation: (100+80-8) × 8×0.0076×6=62.746kg

Other nonferrous metals

**Brass Tube**

- Formula: (OD-Wall thickness) × thickness×0.0267×lengthm
- E.g: 20mm×1.5mm (thickness)×6m(length)
- Calculation: (20-1.5) × 1.5×0.0267×6=4.446kg

**Copper Tube**

- Formula: (OD-Wall thickness) × thickness×0.02796×length (m)
- E.g: 20mm×1.5mm (thickness)×6m(length)
- Calculation: (20-1.5) ×1.5×0.02796×6=4.655kg

**Aluminum Embossed Sheet**

- Formula: length (m)×width (m)×thickness (mm)×2.96
- E.g: 1m width×3m length×2.5mm thickness
- Calculation: 1×3×2.5×2.96=22.2kg

Brass Plate

Ratio: 8.5

Copper Sheet

Ratio: 8.9

Zinc Plate

Ratio: 7.2

Lead Plate

Ratio: 11.37

**Calculation Method**: ratio × thickness = weight / ㎡

**Calculation Method**: ratio × thickness = weight / ㎡

## Related Various Theoretical Metal Weight Calculation Formula

**Steel Rod **(kg)=0.00617×dia.×dia.×length

**Square Bar** (kg)=0.00785×width×width×length

**Hexagon Bar** (kg)=0.0068×across width×across width×length

**Octagonal Steel** (kg)=0.0065×across width×across width×length

**Rebar** (kg)=0.00617×dia.×dia.×length

**Angle Steel** (kg)=0.00785×(width+width-thickness)×thickness×length

**Flat Steel** (kg)=0.00785×thickness×width×length

**Steel Tube** (kg)=0.02466×thickness×(O.D-thickness)×length

**Steel Plate** (kg)=7.85×thickness×end area

**Round Copper Rod** (kg)=0.00698×dia.×dia.×length

**Round Brass Rod** (kg)=0.00668×dia.×dia.×length

**Round Aluminum Rod** (kg)=0.0022×dia.×dia.×length

**Square Red Copper Rod** (kg)=0.0089×width×width×length

**Square Brass Copper Rod** (kg)=0.0085×width×width×length

**Square Aluminum Rod** (kg)=0.0028×width×width×length

**Hexagonal Copper Rod** (kg)=0.0077×across width×across width×length

**Hexagonal Brass Rod** (kg)=0.00736×width×across width×length

**Hexagonal Aluminum Rod** (kg)=0.00242×across width×across width×length

**Copper Plate** (kg)=0.0089×thickness×width×length

**Brass Plate** (kg)=0.0085×thickness×width×length

**Aluminum Plate** (kg)=0.00171×thickness×width×length

**Round Red Copper Tube** (kg)=0.028×thickness×(O.D-thickness)×length

**Round Brass Tube** (kg)=0.0267×thickness×(O.D-thickness)×length

**Round Aluminum Copper Tube** (kg)=0.00879×thickness×(O.D-thickness)×length

Note: in above formula, the unit of length is “m”，unit of area is “㎡”，the rest unit is “mm”

lekh2003January 3, 2018 at 4:00 pmThese formulas are correct. The formulas are easily derived through the equation m=pv

“m” is the mass of the object.

V is what you have to calculate as the volume.

p is the density.

The website is simplifying this formula into situation specific equations which can be derived from common variables you might know.

ANFebruary 1, 2018 at 3:01 pmYou say: “If you want the PDF version of the weight calculation, you can save below infographic or bookmark in web browser.”

everything on this page is protected so no possibility to save or copy anything from it…

MachineMfgFebruary 1, 2018 at 7:28 pmin order to protect it, we limit the downloads. However, you can save the bookmark in your browser for future convenience checking.

NIRBHAYMarch 3, 2018 at 7:18 pmREBER CALCULATION IS HOW RIGHT? IF BAR 20MM DIA THEN HOW 0.617 WEIGHT COME PER MTR?

MachineMfgMarch 4, 2018 at 10:35 amthis formula is one simple way to calculate rebar weight based on experience. You can also calculate based on the round steel weight calculation formula above.

ryne leeMarch 15, 2018 at 2:41 pmvery useful for sheet metal fabricators!

larry roderickApril 2, 2018 at 6:56 amI need it in non metric measurements

MachineMfgApril 2, 2018 at 11:40 amSorry larry, we currently only have the metric measurement.

StephenApril 12, 2018 at 10:38 pmI have gone through the formulas, they were helpful and correct except for one or two that need more explanation.

Besides that, you have really done a very good job. Well done.

godyApril 14, 2018 at 3:46 amthanks to you sir,very heplful this formula.really good and very exactly solution.

Rupesh PatilApril 18, 2018 at 8:41 pmit is very good for immediate calculation