Schedule 40 Pipe Weight
Schedule 40 Pipe Weight is an important parameter for material estimation, transportation, structural calculations, and project cost control.
The theoretical weight of a Schedule 40 steel pipe depends mainly on its outside diameter, wall thickness, length, and steel density. Because Schedule 40 wall thickness varies with nominal pipe size, the weight per meter also changes from one pipe size to another.
| NPS | OD (mm) | WT (mm) | Approx. Weight (kg/m) |
| 1/8″ | 10.3 | 1.73 | 0.37 |
| 1/4″ | 13.7 | 2.24 | 0.63 |
| 3/8″ | 17.1 | 2.31 | 0.85 |
| 1/2″ | 21.3 | 2.77 | 1.27 |
| 3/4″ | 26.7 | 2.87 | 1.69 |
| 1″ | 33.4 | 3.38 | 2.5 |
| 1-1/4″ | 42.2 | 3.56 | 3.39 |
| 1-1/2″ | 48.3 | 3.68 | 4.05 |
| 2″ | 60.3 | 3.91 | 5.44 |
| 2-1/2″ | 73 | 5.16 | 8.63 |
| 3″ | 88.9 | 5.49 | 11.29 |
| 4″ | 114.3 | 6.02 | 16.07 |
| 5″ | 141.3 | 6.55 | 21.77 |
| 6″ | 168.3 | 7.11 | 28.26 |
| 8″ | 219.1 | 8.18 | 42.55 |
| 10″ | 273.1 | 9.27 | 60.3 |
| 12″ | 323.9 | 9.53 | 73.8 |
| 14″ | 355.6 | 9.53 | 81.4 |
| 16″ | 406.4 | 9.53 | 93.55 |
| 18″ | 457.2 | 9.53 | 105.35 |
| 20″ | 508 | 9.53 | 117.1 |
| 22″ | 558.8 | 9.53 | 129 |
| 24″ | 609.6 | 9.53 | 140.6 |
Values are theoretical and should be verified against the applicable dimensional standard, material density, and product tolerance for purchasing purposes.
Schedule 40 Pipe Weight Per Meter kg/m
Pipe manufacturers and engineering companies commonly use kg/m when calculating material quantities.
Schedule 40 Pipe Weight Per Foot lb/ft
For projects using the imperial system, pipe weight may be expressed as lb/ft.
The conversion is:
1 kg/m ≈ 0.67197 lb/ft
Therefore:
lb/ft = kg/m × 0.67197
For procurement and engineering work, the unit system specified by the project should be used consistently.
