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Sheet metal weight calculation formulas

For sheet metal fabricators, this sheet metal weight calculation formula will help you to make the right decision in production.

As one of the largest sheet metal fabrication machinery manufacturers from China, Gldma make insistent effort in the development and production of high quality sheet metal processing tools, as well as the constant knowledge updates for engineering.
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As below, there are listed 14 general steel materials: Steel Plate, Steel Tube, Round Steel, Square Steel, Flat Steel, Hexagonal Steel, Rebar, Flat Steel Tube, Rectangular Steel Tube, Equal-leg angle Steel, Unequal-leg Angle Steel, Brass Tube, Copper Tube, Aluminum Embossed Sheet.

General Steel Formulas: 
1. Steel Plate Formula: 7.85×length (m)×width (m)×thickness (mm)
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
2. 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
3. Round steel Formula: Dia.mm×Dia.mm×0.00617×length (m)
E.g:: 20mm (Dia.)6m (length)
Calculation: 20×20×0.00617×6=14.808kg
4. 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)
5. 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)
6. 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)
7. Rebar Formula: Dia.mm×Dia.mm×0.00617×length (m)
E.g: 20mm(Dia.)X12m (length)
Calculation: 20×20×0.00617×12=29.616kg
8. 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
9. 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
10. Equal-leg angel 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
11. Unequal-leg angel 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
12. Brass tube Formula: (OD-Wall thickness) × thickness×0.0267×length
E.g: 20mm×1.5mm (thickness)×6m(length)
Calculation: (20-1.5) × 1.5×0.0267×6=4.446kg

13. 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
14. 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

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". 

We would very love to share our knowledge and experience in the sheet metal fabrication industries. Your feedback and inquiry is always welcomed.
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