Steel Pipe Weight Calculator
Enter outer diameter, wall thickness, length, and material to instantly calculate the weight of a steel pipe in kg and lbs.
Pipe Dimensions
Formula Reference
W = (π / 4) × (OD² − ID²) × L × ρ
Where OD = outer diameter (m), ID = OD − 2×t (m), t = wall thickness, L = length (m), ρ = density (kg/m³).
Enter pipe dimensions on the left and click Calculate.
Weight Result
—
Kilograms (kg)
—
Pounds (lb)
Common Schedule 40 Carbon Steel Pipe Sizes
| NPS | OD (mm) | Wall (mm) | kg/m |
|---|---|---|---|
| ½" | 21.34 | 2.77 | 1.27 |
| ¾" | 26.67 | 2.87 | 1.69 |
| 1" | 33.40 | 3.38 | 2.50 |
| 2" | 60.33 | 3.91 | 5.44 |
| 3" | 88.90 | 5.49 | 11.29 |
| 4" | 114.30 | 6.02 | 16.07 |
| 6" | 168.28 | 7.11 | 28.26 |
| 8" | 219.08 | 8.18 | 42.55 |
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Summary
Enter outer diameter, wall thickness, length, and material to instantly calculate the weight of a steel pipe in kg and lbs.
How it works
- Enter the outer diameter (OD) of the pipe in your preferred unit.
- Enter the wall thickness of the pipe.
- Enter the pipe length.
- Select the material to apply the correct density.
- Optionally enter a quantity for multiple pipes.
- The calculator applies Weight = π/4 × (OD² − ID²) × L × ρ and displays results in kg and lbs.
Use cases
- Estimating steel pipe weight for structural and mechanical engineering projects.
- Calculating shipping and freight weight for pipe orders.
- Preparing bill of materials (BOM) for fabrication and construction.
- Comparing pipe weights across different materials or wall thicknesses.
- Checking load limits on pipe supports and hangers.
- Verifying theoretical weight against mill certificates.
- Pipe rack and spool weight calculations for plant design.
Frequently Asked Questions
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Last updated: 2026-05-23 ·
Reviewed by Nham Vu