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Pipe Weight Calculator

Find the weight of MS, GI and stainless steel pipes in kg per meter and per length. Works for round pipes and for square and rectangular (box) pipes. Enter the outside diameter and wall thickness, or pick a size from the IS 1239 chart below.

Pipe Weight Calculator

All results are in kg.

Material

Shape

Outside diameter (OD)

Side A

Side B

Wall thickness

Length

Quantity (pieces)

–Weight of 1 piece

–Total weight

–Weight per meter

–Weight per foot

–Total in tonnes

–Total in pounds

MS Pipe Weight Chart (IS 1239)

Thickness (mm) / weight (kg per meter) for light, medium and heavy class pipes, by nominal bore.

Nominal bore	OD (mm)	Light: t / kg/m	Medium: t / kg/m	Heavy: t / kg/m
15 NB (½")	21.3	2.0 / 0.95	2.6 / 1.20	3.2 / 1.43
20 NB (¾")	26.9	2.35 / 1.42	2.6 / 1.56	3.2 / 1.87
25 NB (1")	33.7	2.65 / 2.03	3.2 / 2.41	4.0 / 2.93
32 NB (1¼")	42.4	2.65 / 2.60	3.2 / 3.09	4.0 / 3.79
40 NB (1½")	48.3	2.9 / 3.25	3.2 / 3.56	4.0 / 4.37
50 NB (2")	60.3	2.9 / 4.10	3.6 / 5.03	4.5 / 6.19
65 NB (2½")	76.1	3.25 / 5.84	3.6 / 6.44	4.5 / 7.95
80 NB (3")	88.9	3.25 / 6.86	4.0 / 8.37	4.85 / 10.05
100 NB (4")	114.3	3.65 / 9.96	4.5 / 12.18	5.4 / 14.50

Weights are calculated for plain-end pipe from OD and wall thickness with steel density 7.85. Published IS 1239 tables can differ by a small amount because of rounding and socket ends.

Square & Rectangular Pipe Weight Chart

Size	Weight per m	Per 6 m length
40 × 40 × 2 mm	2.386	14.32
25 × 25 × 2 mm	1.444	8.67
50 × 50 × 2 mm	3.014	18.09
50 × 50 × 3 mm	4.427	26.56
75 × 75 × 3 mm	6.782	40.69
100 × 100 × 4 mm	12.058	72.35
40 × 20 × 2 mm	1.758	10.55
60 × 40 × 2 mm	3.014	18.09
80 × 40 × 3 mm	5.369	32.22

Pipe Weight Formula

Weight (kg/m) = (OD − t) × t × 0.02466

OD is the outside diameter and t is the wall thickness, both in mm.

Example: a 40 NB medium pipe (OD 48.3 mm, 3.2 mm thick) weighs (48.3 − 3.2) × 3.2 × 0.02466 = 3.56 kg/m, or 21.36 kg for a 6 m length.

For a square or rectangular pipe:

Weight (kg/m) = [A × B − (A − 2t) × (B − 2t)] × 0.00785

Pipe Weight by Size

Frequently Asked Questions

How do I calculate MS pipe weight per meter?

Use (OD − t) × t × 0.02466, with OD and wall thickness in mm. The answer is kg per meter.

What is the weight of a 1 inch MS pipe?

A 1 inch (25 NB) pipe has an OD of 33.7 mm. In medium class (3.2 mm) it weighs about 2.41 kg per meter, or about 14.4 kg for a 6 m length.

What is the weight of a 2 inch MS pipe?

A 2 inch (50 NB) pipe has an OD of 60.3 mm. In medium class (3.6 mm) it weighs about 5.03 kg per meter.

What is the weight of a 40 × 40 square pipe?

A 40 × 40 × 2 mm square pipe weighs about 2.39 kg per meter, or about 14.3 kg for a 6 m length.

How do I calculate SS pipe weight?

Choose "Stainless Steel 304" in the calculator. For the formula, multiply the MS result by 1.01, because SS 304 is about 1% denser than mild steel.

What is the difference between light, medium and heavy pipe?

They have the same outside diameter but different wall thickness. Heavy pipe has the thickest wall, so it is heavier and stronger.

Pipe Weight Calculator