Pipe weight calculator
Calculate hollow round-pipe mass from measured diameters, length and material density. See mass per metre, per piece and in total.
Uniform concentric hollow round sections and up to 10,000 identical pieces. No nominal-size, pipe-schedule or material-grade lookup. Nonpositive inner diameter and walls at least half the outside diameter are rejected. Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.
Your result
How to use Pipe weight calculator
- Enter measured outside diameter and wall thickness or inside diameter.
- Choose length, quantity and the material's density with units.
- Review mass per metre and total mass, then download the report.
Useful next steps
Measure the hollow section
Enter outside diameter and either wall thickness or inside diameter. These are geometric measurements, not a nominal pipe size or schedule. The inside diameter must be smaller than the outside diameter and greater than zero. A uniform concentric wall is assumed.
Use density for the actual material
The starting density is an editable example. Replace it with the density from the specific material data. The calculator accepts kg/m³, g/cm³ or lb/ft³ and converts the dimensions consistently before calculating mass. Coatings, threads, fittings and pipe contents are excluded.
Understand the result
The material cross-section is π × (outside diameter² − inside diameter²) ÷ 4. Multiply it by length for volume, then by density for mass. A 100 mm outside diameter tube with a 5 mm wall, 2 metre length and 7,850 kg/m³ density has a nominal mass of approximately 23.4284 kg.
Download the mass calculation
Save CSV, text or JSON results with inside diameter, cross-section and the assumptions used. The result is mass in kilograms or pounds, rather than weight force. It is not a pressure rating, grade certification or structural design.