Pipe weight calculator and pipe weight chart in kg/m.
Pipe weight (kg/m) = (OD − t) × t × 0.02466 for carbon steel, with OD and wall thickness t in mm. A 2" Sch 40 pipe (60.3 × 3.91 mm) weighs 5.44 kg/m, and a 6 m length weighs 32.6 kg. Multiply by 1.01 for SS 304.
Material detailsDensity: 7.85 g/cm³
Estimate costOptional rate per kg
Theoretical weight from nominal size and density. Actual weight varies within mill tolerances.
My requirement list
Add items from the calculator, pipe schedules or grade finder. Send the list to Steel Impex India, or download it as a PDF estimate to share with your team. The list is saved on this device.
© 2026 Steel Impex India. The Metal Toolkit and its grade database are compiled by Steel Impex India and protected as a copyright compilation. Free to use for your own work; copying, scraping or republishing the data requires a written licence. Grade data is a guide drawn from published standards; always verify against the current edition of the standard and your purchase specification. Terms of use and licensing · Privacy
MS pipe weight chart (kg/m) by schedule
Wall thickness and carbon steel weight at 7.85 g/cm³. For SS 304 multiply the weight by 1.01; for SS 316 by 1.017.
| Size | OD mm | Sch 10S | Sch 40 | Sch 80 | Sch 160 |
|---|---|---|---|---|---|
| 1/8" (6 NB) | 10.3 | 1.24 mm 0.28 kg/m · 0.19 lb/ft | 1.73 mm 0.37 kg/m · 0.25 lb/ft | 2.41 mm 0.47 kg/m · 0.32 lb/ft | – |
| 1/4" (8 NB) | 13.7 | 1.65 mm 0.49 kg/m · 0.33 lb/ft | 2.24 mm 0.63 kg/m · 0.43 lb/ft | 3.02 mm 0.80 kg/m · 0.53 lb/ft | – |
| 3/8" (10 NB) | 17.1 | 1.65 mm 0.63 kg/m · 0.42 lb/ft | 2.31 mm 0.84 kg/m · 0.57 lb/ft | 3.20 mm 1.10 kg/m · 0.74 lb/ft | – |
| 1/2" (15 NB) | 21.3 | 2.11 mm 1.00 kg/m · 0.67 lb/ft | 2.77 mm 1.27 kg/m · 0.85 lb/ft | 3.73 mm 1.62 kg/m · 1.09 lb/ft | 4.78 mm 1.95 kg/m · 1.31 lb/ft |
| 3/4" (20 NB) | 26.7 | 2.11 mm 1.28 kg/m · 0.86 lb/ft | 2.87 mm 1.69 kg/m · 1.13 lb/ft | 3.91 mm 2.20 kg/m · 1.48 lb/ft | 5.56 mm 2.90 kg/m · 1.95 lb/ft |
| 1" (25 NB) | 33.4 | 2.77 mm 2.09 kg/m · 1.41 lb/ft | 3.38 mm 2.50 kg/m · 1.68 lb/ft | 4.55 mm 3.24 kg/m · 2.18 lb/ft | 6.35 mm 4.24 kg/m · 2.85 lb/ft |
| 1¼" (32 NB) | 42.2 | 2.77 mm 2.69 kg/m · 1.81 lb/ft | 3.56 mm 3.39 kg/m · 2.28 lb/ft | 4.85 mm 4.47 kg/m · 3.00 lb/ft | 6.35 mm 5.61 kg/m · 3.77 lb/ft |
| 1½" (40 NB) | 48.3 | 2.77 mm 3.11 kg/m · 2.09 lb/ft | 3.68 mm 4.05 kg/m · 2.72 lb/ft | 5.08 mm 5.41 kg/m · 3.64 lb/ft | 7.14 mm 7.25 kg/m · 4.87 lb/ft |
| 2" (50 NB) | 60.3 | 2.77 mm 3.93 kg/m · 2.64 lb/ft | 3.91 mm 5.44 kg/m · 3.65 lb/ft | 5.54 mm 7.48 kg/m · 5.03 lb/ft | 8.74 mm 11.11 kg/m · 7.47 lb/ft |
| 2½" (65 NB) | 73.0 | 3.05 mm 5.26 kg/m · 3.54 lb/ft | 5.16 mm 8.63 kg/m · 5.80 lb/ft | 7.01 mm 11.41 kg/m · 7.67 lb/ft | 9.53 mm 14.92 kg/m · 10.02 lb/ft |
| 3" (80 NB) | 88.9 | 3.05 mm 6.46 kg/m · 4.34 lb/ft | 5.49 mm 11.29 kg/m · 7.59 lb/ft | 7.62 mm 15.27 kg/m · 10.26 lb/ft | 11.13 mm 21.35 kg/m · 14.34 lb/ft |
| 3½" (90 NB) | 101.6 | 3.05 mm 7.41 kg/m · 4.98 lb/ft | 5.74 mm 13.57 kg/m · 9.12 lb/ft | 8.08 mm 18.64 kg/m · 12.52 lb/ft | – |
| 4" (100 NB) | 114.3 | 3.05 mm 8.37 kg/m · 5.62 lb/ft | 6.02 mm 16.08 kg/m · 10.80 lb/ft | 8.56 mm 22.32 kg/m · 15.00 lb/ft | 13.49 mm 33.54 kg/m · 22.54 lb/ft |
| 4 1/2" (115 NB) | 127.0 | – | 6.27 mm 18.67 kg/m · 12.54 lb/ft | 9.02 mm 26.24 kg/m · 17.64 lb/ft | – |
| 5" (125 NB) | 141.3 | 3.40 mm 11.56 kg/m · 7.77 lb/ft | 6.55 mm 21.77 kg/m · 14.63 lb/ft | 9.53 mm 30.97 kg/m · 20.81 lb/ft | 15.88 mm 49.12 kg/m · 33.01 lb/ft |
| 6" (150 NB) | 168.3 | 3.40 mm 13.83 kg/m · 9.29 lb/ft | 7.11 mm 28.26 kg/m · 18.99 lb/ft | 10.97 mm 42.56 kg/m · 28.60 lb/ft | 18.26 mm 67.57 kg/m · 45.40 lb/ft |
| 7" (175 NB) | 193.7 | – | 7.65 mm 35.10 kg/m · 23.59 lb/ft | 12.70 mm 56.69 kg/m · 38.09 lb/ft | – |
| 8" (200 NB) | 219.1 | 3.76 mm 19.97 kg/m · 13.42 lb/ft | 8.18 mm 42.55 kg/m · 28.59 lb/ft | 12.70 mm 64.64 kg/m · 43.44 lb/ft | 23.01 mm 111.27 kg/m · 74.77 lb/ft |
| 9" (225 NB) | 244.5 | – | 8.69 mm 50.54 kg/m · 33.96 lb/ft | 12.70 mm 72.60 kg/m · 48.78 lb/ft | – |
| 10" (250 NB) | 273.1 | 4.19 mm 27.79 kg/m · 18.67 lb/ft | 9.27 mm 60.31 kg/m · 40.53 lb/ft | 15.09 mm 96.02 kg/m · 64.52 lb/ft | 28.58 mm 172.34 kg/m · 115.81 lb/ft |
| 11" (275 NB) | 298.5 | – | 9.53 mm 67.91 kg/m · 45.64 lb/ft | 12.70 mm 89.51 kg/m · 60.15 lb/ft | – |
| 12" (300 NB) | 323.9 | 4.57 mm 35.99 kg/m · 24.18 lb/ft | 10.31 mm 79.73 kg/m · 53.58 lb/ft | 17.48 mm 132.09 kg/m · 88.76 lb/ft | 33.32 mm 238.78 kg/m · 160.45 lb/ft |
| 14" (350 NB) | 355.6 | 4.78 mm 41.36 kg/m · 27.79 lb/ft | 11.13 mm 94.55 kg/m · 63.54 lb/ft | 19.05 mm 158.11 kg/m · 106.25 lb/ft | 35.71 mm 281.72 kg/m · 189.30 lb/ft |
| 16" (400 NB) | 406.4 | 4.78 mm 47.34 kg/m · 31.81 lb/ft | 12.70 mm 123.31 kg/m · 82.86 lb/ft | 21.44 mm 203.54 kg/m · 136.78 lb/ft | 40.49 mm 365.38 kg/m · 245.52 lb/ft |
| 18" (450 NB) | 457.2 | 4.78 mm 53.33 kg/m · 35.84 lb/ft | 14.27 mm 155.88 kg/m · 104.74 lb/ft | 23.83 mm 254.68 kg/m · 171.14 lb/ft | 45.24 mm 459.62 kg/m · 308.85 lb/ft |
| 20" (500 NB) | 508.0 | 5.54 mm 68.65 kg/m · 46.13 lb/ft | 15.09 mm 183.43 kg/m · 123.26 lb/ft | 26.19 mm 311.19 kg/m · 209.11 lb/ft | 50.01 mm 564.85 kg/m · 379.56 lb/ft |
| 22" (550 NB) | 558.8 | 5.54 mm 75.59 kg/m · 50.79 lb/ft | – | 28.58 mm 373.71 kg/m · 251.12 lb/ft | 53.98 mm 672.03 kg/m · 451.58 lb/ft |
| 24" (600 NB) | 609.6 | 6.35 mm 94.47 kg/m · 63.48 lb/ft | 17.48 mm 255.25 kg/m · 171.52 lb/ft | 30.96 mm 441.80 kg/m · 296.88 lb/ft | 59.54 mm 807.68 kg/m · 542.73 lb/ft |
Reference basis: Compiled by Steel Impex India. Check each table’s source, product form and delivery condition before use. Sources, calculation methods and corrections.
Frequently asked questions
How do you calculate MS pipe weight in kg? (formula)
Weight (kg/m) = π × (OD − t) × t × density / 1000. For carbon steel at 7.85 g/cm³ this is (OD − t) × t × 0.02466, with OD and t in mm.
What is the weight of a 1 inch Sch 40 pipe?
1" Sch 40 is 33.4 mm OD × 3.38 mm wall, about 2.50 kg/m in carbon steel and 2.53 kg/m in SS 304.
What is the weight of a 4 inch Sch 40 MS pipe?
114.3 mm OD × 6.02 mm wall, about 16.08 kg/m, or 96.5 kg for a 6 m length.
Does this cover IS 1239 (light, medium, heavy) MS pipes?
The chart here is for ASME schedules. IS 1239 walls are different (for example 2" medium is 3.6 mm, not 3.91 mm), so use the MS pipe weight chart (IS 1239) page for light, medium and heavy class weights.
How do I convert pipe weight in kg/mtr to tonnes for an order?
Multiply kg per metre by the length in metres and the number of lengths, then divide by 1000. For mixed sizes, calculate and sum each line separately. Use the unrounded result where possible.