Piping
Pipe weight calculator
In short
Pipe line weight is the sum, per metre, of the pipe m = π (D − t) t ρ / 10⁶, the water m = π/4 × di² × ρeau / 10⁶ and the insulation m = π/4 × ((D + 2e)² − D²) × ρc / 10⁶, in kg/m. The total is M = (mt + me + mc) × L.
Calculation
Example calculated with the tool’s default values.
Inputs
- Pipe
- DN100 · 114.3 × 3.6 mm
- Length
- 6 m
- Material
- Carbon steel
- Contents
- Full of water
- Insulation
- None
- Insulation thickness
- 50 mm
Results
- Total line weight
- 113.0 kg
Worked example
Every value in this section belongs to the example, calculated with the tool’s default values.
Other results of the example
- Weight per metre
- 18.84 kg/m
- Pipe (Carbon steel)
- 9.83 kg/m
- Water
- 9.01 kg/m
- Insulation
- 0.00 kg/m
- Pipe only, total
- 59.0 kg
- Internal volume
- 54.1 L
- Insulated OD
- 114.3 mm
Step-by-step calculation
Pipe
m = π (D − t) t ρ / 10⁶
π × 110.7 × 3.60 × 7850 / 10⁶ = 9.83 kg/m
Water
m = π/4 × di² × ρeau / 10⁶
π/4 × 107.1² × 1000 / 10⁶ = 9.01 kg/m
Insulation
m = π/4 × ((D + 2e)² − D²) × ρc / 10⁶
0
Total
M = (mt + me + mc) × L
18.84 × 6.00 = 113.0 kg
How to use it
- Pick the pipe: outside diameter and wall thickness.
- Enter the line length in metres, the material (carbon steel, stainless 304L or 316L, duplex 2205, aluminium, copper) and the contents: empty or full of water.
- Pick the insulation (none, rock wool, elastomeric foam or custom density) and its thickness.
- Read the total line weight.
Frequently asked questions
What is the pipe weight calculator formula?
Pipe weight per metre is m = π (D − t) t ρ / 10⁶, with D the outside diameter and t the wall in mm, ρ = 7850 kg/m³ for carbon steel. This is the EN 10220 formula, M = (D − T) T × 0.02466. Example for a 114.3 × 3.6 pipe: π × 110.7 × 3.60 × 7850 / 10⁶ = 9.83 kg/m.
How do I calculate pipe weight with water?
Add the water inside: m = π/4 × di² × ρeau / 10⁶, with di the inside diameter and water at 1000 kg/m³. For the 114.3 × 3.6 pipe: π/4 × 107.1² × 1000 / 10⁶ = 9.01 kg/m of water, so 18.84 kg/m in all. Over 6 m: 18.84 × 6.00 = 113.0 kg.
What about stainless steel and other metals?
The formula is the same with the material density: 7900 kg/m³ for stainless 304L, 8000 kg/m³ for 316L, 7800 kg/m³ for duplex 2205, from EN 10088-1 annex A. Aluminium (2700 kg/m³) and copper (8940 kg/m³) are also offered.
How much does pipe insulation weigh?
Insulation of thickness e forms a ring around the pipe: m = π/4 × ((D + 2e)² − D²) × ρc / 10⁶. Densities offered: rock wool pipe sections ≈ 100 kg/m³ (ROCKWOOL 800 datasheet), elastomeric foam 52.5 kg/m³ (AF/Armaflex EPD), or the value from the installed product's datasheet.
Limits
Indicative results. Jacketing, clamps, flanges and fittings are not included. Insulation densities are nominal maker values: confirm them on the installed product's datasheet.
Sources
- Masse linéique des tubes : EN 10220:2002, § 5 (M = (D − T) T × 0,02466 pour 7 850 kg/m³)
- Masses volumiques des métaux : EN 10088-1 annexe A (inox) ; voir data/materials.ts
- Laine de roche en coquille ≈ 100 kg/m³ : ROCKWOOL 800, fiche technique (EN 1602) (link)
- Mousse élastomère 52,5 kg/m³ : AF/Armaflex, déclaration environnementale de produit (EPD) (link)