Theoretical Steel Weight Calculation Formula (30 Types of Metals)

Steel Weight calculation formula

The steel weight calculation formula is:

Weight (kg) = Sectional Area (mm2) × Length (m) × Density (ρ, g/cm3)× 1/1000

Above is the formula to calculate the steel weight in kg.

For the metal density, you can also refer to:

P.S: Among all of the steel weight calculation formula in the following part, there are two kinds of steel that are not mentioned, which are I beam steel and H beam steel.

If you want to know the difference between H beam steel and I beam steel as well as the methods to calculate the weight of H beam steel and I beam steel, you check it out from the following two quick links:

Steel weight calculator & Metal weight calculator

In order to help you calculate the weight of various metals and steels including ms plate, gi sheet, structural steel, ms angle, mild steel, steel bar, square tube, angle, aluminum etc., we made below steel weight calculator and metal weight calculator to help you calculate the weight of metals in various shapes.


Steel & Metal Weight Calculation Formula

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 1

Steel Plate weight calculation formula

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

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 2

Steel Pipe weight calculation formula

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

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 3

Steel Rod weight calculation formula

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

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 4

Square Steel weight calculation formula

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

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 5

Flat Steel weight calculation formula

• Formula: side width(mm)×thickness(mm)×length(m)×0.00785
• E.g: 50mm(side width)×5.0mm(thickness)×6m(length)
• Calculation: 50×5×6×0.00785=11.775(kg)

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 6

Hexagonal Steel weight calculation formula

• Formula: side-to-side dia.×side-to-side dia.× length(m)×0.0068
• E.g: 50mm(dia.)×6m (length)
• Calculation: 50×50×6×0.0068=102(kg)

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 7

Rebar weight calculation formula

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

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 8

Flat Steel Tube weight calculation formula

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

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 9

Rectangular Steel Tube weight calculation formula

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

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 10

Equal-leg Angle Steel weight calculation formula

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

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 11

Unequal-leg Angle Steel weight calculation formula

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

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 12

Brass Pipe weight calculation formula

• Formula: (OD-wall thickness)×thickness(mm)×length(m)×0.0267

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 13

Copper Pipe weight calculation formula

• Formula: (OD-wall thickness)×thickness(mm)×length(m)×0.02796

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 14

Aluminum Checkered Sheet weight calculation formula

• Formula: length(m)×width(mm)×thickness (mm)×0.00296

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 15

Brass Pipe weight calculation formula

• Formula: thickness(mm)×(O.D-thickness)×length(m)×0.0267

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 16

Copper Sheet weight calculation formula

• Formula: length(m)×width(mm)×thickness(mm)×0.0089

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 17

Zinc Plate weight calculation formula

• Formula: length(m)×width(mm)×thickness(mm)×0.0072

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 18

Lead Sheet weight calculation formula

• Formula: length(m)×width(mm)×thickness(mm)×0.01137

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 19

Octagonal Steel weight calculation formula

• Formula: length(m)×across width(mm)×across width(mm)×0.0065

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 20

Copper Rod weight calculation formula

• Formula: dia.(mm)×dia.(mm)×length(m)×0.00698

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 21

Brass Rod weight calculation formula

• Formula: dia.(mm)×dia.(mm)×length(m)×0.00668

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 22

Aluminum Rod weight calculation formula

• Formula: dia.(mm)×dia.(mm)×length(m)×0.0022

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 23

Square Copper Rod weight calculation formula

• Formula: width(mm)×width(mm)×length(m)×0.0089

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 24

Square Brass Rod weight calculation formula

• Formula: width(mm)×width(mm)×length(m)×0.0085

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 25

Square Aluminum Rod weight calculation formula

• Formula: width(mm)×width(mm)×length(m)×0.0028

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 26

Hexagonal Copper Rod weight calculation formula

• Formula: across width(mm)×across width(mm)×length(m)×0.0077

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 27

Hexagonal Brass Rod weight calculation formula

• Formula: width(mm)×across width(mm)×length(m)×0.00736

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 28

Hexagonal Aluminum Rod weight calculation formula

• Formula: across width(mm)×across width(mm)×length(m)×0.00242

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 29

Aluminum Plate weight calculation formula

• Formula: thickness(mm)×width(mm)×length(m)×0.00171

Theoretical Steel Weight Calculation Formula (30 Types of Metals) 30

Aluminum Pipe weight calculation formula

• Formula: thickness(mm)×(O.D(mm)-thickness(mm))×length(m)×0.00879

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436 thoughts on “Theoretical Steel Weight Calculation Formula (30 Types of Metals)”

  1. Sir, if you could give me the Theoretical Metal Weight Calculation Formula (30 Types of Metals) in PDF of EXCEL it will be of much use for estimation.

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