Why is outer diameter alone not sufficient?
Pipes are hollow cylinders—only wall material contributes to weight. Two pipes with same OD but different wall thickness have different weights.
Engineering
Pipe Weight Calculator
Compute the approximate weight of a hollow pipe segment for planning and design.
Material & Geometry Check
Get an estimate of total pipe mass based on geometric and density inputs.
What this calculator does
The Pipe Weight Calculator determines the total mass of a cylindrical pipe based on dimensions and material. Understanding pipe weight is critical for selecting support structures, calculating shipping costs, and ensuring equipment can safely handle the load.
How it works
The calculator computes the volume of material in the pipe wall by finding cross-sectional area (difference between outer and inner circles) and multiplying by length. Weight = Volume × Material Density.
Formula
Cross-sectional Area = π × (OD² - ID²) ÷ 4. Volume = Area × Length. Weight = Volume × Density. Moment of Inertia = π/64 × (OD⁴ - ID⁴).
Tips for using this calculator
- Verify material density—different alloys have different densities
- Wall thickness should never equal or exceed half the outer diameter
- Account for insulation and coatings when calculating support loads
- Use weight-per-length to estimate total weight for different lengths
- Moment of inertia helps determine safe span between supports
Frequently asked questions
What density should I use?
Common densities: steel ~7850 kg/m³, stainless steel 7480-8000 kg/m³, copper 8960 kg/m³, aluminum 2700 kg/m³, PVC ~1400 kg/m³.
Does this weight include contents?
No, this calculates pipe material only. Add fluid or gas mass separately when sizing support structures.