Pipe & Round Tube Weight Calculator
Weight from outer diameter and wall thickness — steel, stainless, aluminum, copper
Pipe weight is defined by three numbers: outer diameter, wall thickness, and length. This calculator applies the standard formula — weight per meter = π/4 × (D² − d²) × density — so you get exact kg/m and total order weight for any pipe or round tube in any of 30+ materials.
The wall thickness is where estimates usually go wrong: a Ø48.3 mm steel pipe weighs 3.87 kg/m with a 3.6 mm wall, but 5.44 kg/m with a 5.6 mm wall — a 40% difference invisible from the outside. Always confirm the wall before quoting.
Works for scaffolding tube, structural CHS, hydraulic line pipe, stainless sanitary tube, copper plumbing tube, and aluminum round tube alike — pick the material and grade, and the correct density is applied.
Frequently Asked Questions
How do I calculate pipe weight per meter?
Weight per meter (kg/m) = π/4 × (D² − d²) × density, with D and d in meters — or use mm and divide by 1,000,000. For a 48.3×3.6 mm steel pipe: π/4 × (0.0483² − 0.0411²) × 7,850 ≈ 3.97 kg/m.
What does scaffolding tube weigh?
Standard EN 39 scaffolding tube (48.3 mm OD, 3.2 mm wall, steel) weighs about 3.56 kg/m — a 6 m length is roughly 21 kg.
Does pipe schedule affect weight?
Yes — schedule defines wall thickness for a given nominal size, and weight scales with the wall. A 2-inch NPS pipe weighs 3.63 kg/m in Sch 10 but 5.44 kg/m in Sch 40. Enter the actual OD and wall for exact results.