Steel Weight Calculator
Calculate the weight of steel tubes, pipes, beams, angles, bars, plates and rebar in kg per metre, per piece and in total – then get today’s price from Stouhi Metal in Beirut in one click.
Theoretical weights at a steel density of 7,850 kg/m³ (stainless 7,930, aluminum 2,700). Tube weights ignore corner radii, so actual weights can be slightly lower. Beam weights are from standard European section tables. Contact us for exact weights and prices.
Steel Weight Charts
Theoretical weights for the sizes we stock in Beirut. Jump to a chart:
Square Steel Tube Weight Chart
| Size (mm) | Thickness (mm) | kg/m | 6 m length (kg) |
|---|---|---|---|
| 16×16 | 1.5 | 0.68 | 4.1 |
| 20×20 | 1.5 | 0.87 | 5.2 |
| 20×20 | 2 | 1.13 | 6.8 |
| 25×25 | 1.5 | 1.11 | 6.6 |
| 25×25 | 2 | 1.44 | 8.7 |
| 30×30 | 1.5 | 1.34 | 8.1 |
| 30×30 | 2 | 1.76 | 10.6 |
| 40×40 | 1.5 | 1.81 | 10.9 |
| 40×40 | 2 | 2.39 | 14.3 |
| 50×50 | 2 | 3.01 | 18.1 |
| 60×60 | 2 | 3.64 | 21.9 |
| 80×80 | 2 | 4.90 | 29.4 |
| 80×80 | 3 | 7.25 | 43.5 |
| 100×100 | 2.5 | 7.65 | 45.9 |
| 120×120 | 2.5 | 9.22 | 55.3 |
| 120×120 | 3 | 11.02 | 66.1 |
| 150×150 | 3 | 13.85 | 83.1 |
| 150×150 | 4 | 18.34 | 110.0 |
Rectangular Steel Tube Weight Chart
| Size (mm) | Thickness (mm) | kg/m | 6 m length (kg) |
|---|---|---|---|
| 10×30 | 1.5 | 0.87 | 5.2 |
| 10×40 | 1.5 | 1.11 | 6.6 |
| 10×40 | 2 | 1.44 | 8.7 |
| 15×30 | 1.5 | 0.99 | 5.9 |
| 15×30 | 2 | 1.29 | 7.7 |
| 20×30 | 1.5 | 1.11 | 6.6 |
| 20×30 | 2 | 1.44 | 8.7 |
| 20×40 | 1.5 | 1.34 | 8.1 |
| 20×40 | 2 | 1.76 | 10.6 |
| 20×80 | 2 | 3.01 | 18.1 |
| 25×50 | 1.5 | 1.70 | 10.2 |
| 25×50 | 2 | 2.23 | 13.4 |
| 30×50 | 2 | 2.39 | 14.3 |
| 30×60 | 1.5 | 2.05 | 12.3 |
| 30×60 | 2 | 2.70 | 16.2 |
| 30×60 | 2.5 | 3.34 | 20.0 |
| 30×70 | 2 | 3.01 | 18.1 |
| 30×70 | 2.5 | 3.73 | 22.4 |
| 40×80 | 1.5 | 2.76 | 16.5 |
| 40×80 | 2 | 3.64 | 21.9 |
| 40×80 | 2.5 | 4.51 | 27.1 |
| 50×100 | 2 | 4.58 | 27.5 |
| 50×100 | 2.5 | 5.69 | 34.1 |
| 60×120 | 2 | 5.53 | 33.2 |
| 60×120 | 3 | 8.20 | 49.2 |
| 100×200 | 3 | 13.85 | 83.1 |
IPE, HEA, HEB & UPN Beam Weight Chart
| Section | kg/m | 6 m length (kg) | 12 m length (kg) |
|---|---|---|---|
| IPE 80 | 6.00 | 36.0 | 72.0 |
| IPE 100 | 8.10 | 48.6 | 97.2 |
| IPE 120 | 10.40 | 62.4 | 124.8 |
| IPE 140 | 12.90 | 77.4 | 154.8 |
| IPE 160 | 15.80 | 94.8 | 189.6 |
| IPE 180 | 18.80 | 112.8 | 225.6 |
| IPE 200 | 22.40 | 134.4 | 268.8 |
| IPE 220 | 26.20 | 157.2 | 314.4 |
| IPE 240 | 30.70 | 184.2 | 368.4 |
| IPE 270 | 36.10 | 216.6 | 433.2 |
| IPE 300 | 42.20 | 253.2 | 506.4 |
| IPE 330 | 49.10 | 294.6 | 589.2 |
| IPE 360 | 57.10 | 342.6 | 685.2 |
| IPE 400 | 66.30 | 397.8 | 795.6 |
| IPE 450 | 77.60 | 465.6 | 931.2 |
| IPE 500 | 90.70 | 544.2 | 1,088.4 |
| IPE 600 | 122.00 | 732.0 | 1,464.0 |
| HEA 100 | 16.70 | 100.2 | 200.4 |
| HEA 120 | 19.90 | 119.4 | 238.8 |
| HEA 140 | 24.70 | 148.2 | 296.4 |
| HEA 160 | 30.40 | 182.4 | 364.8 |
| HEA 180 | 35.50 | 213.0 | 426.0 |
| HEA 200 | 42.30 | 253.8 | 507.6 |
| HEA 220 | 50.50 | 303.0 | 606.0 |
| HEA 240 | 60.30 | 361.8 | 723.6 |
| HEA 260 | 68.20 | 409.2 | 818.4 |
| HEA 280 | 76.40 | 458.4 | 916.8 |
| HEA 300 | 88.30 | 529.8 | 1,059.6 |
| HEB 100 | 20.40 | 122.4 | 244.8 |
| HEB 120 | 26.70 | 160.2 | 320.4 |
| HEB 140 | 33.70 | 202.2 | 404.4 |
| HEB 160 | 42.60 | 255.6 | 511.2 |
| HEB 180 | 51.20 | 307.2 | 614.4 |
| HEB 200 | 61.30 | 367.8 | 735.6 |
| HEB 220 | 71.50 | 429.0 | 858.0 |
| HEB 240 | 83.20 | 499.2 | 998.4 |
| HEB 260 | 93.00 | 558.0 | 1,116.0 |
| HEB 280 | 103.00 | 618.0 | 1,236.0 |
| HEB 300 | 117.00 | 702.0 | 1,404.0 |
| UPN 80 | 8.64 | 51.8 | 103.7 |
| UPN 100 | 10.60 | 63.6 | 127.2 |
| UPN 120 | 13.40 | 80.4 | 160.8 |
| UPN 140 | 16.00 | 96.0 | 192.0 |
| UPN 160 | 18.80 | 112.8 | 225.6 |
| UPN 180 | 22.00 | 132.0 | 264.0 |
| UPN 200 | 25.30 | 151.8 | 303.6 |
| UPN 220 | 29.40 | 176.4 | 352.8 |
| UPN 240 | 33.20 | 199.2 | 398.4 |
| UPN 260 | 37.90 | 227.4 | 454.8 |
| UPN 280 | 41.80 | 250.8 | 501.6 |
| UPN 300 | 46.20 | 277.2 | 554.4 |
Rebar Weight Chart
| Diameter (mm) | kg/m | 12 m length (kg) |
|---|---|---|
| Ø 6 | 0.222 | 2.66 |
| Ø 8 | 0.395 | 4.74 |
| Ø 10 | 0.617 | 7.40 |
| Ø 12 | 0.888 | 10.65 |
| Ø 14 | 1.208 | 14.50 |
| Ø 16 | 1.578 | 18.94 |
| Ø 18 | 1.998 | 23.97 |
| Ø 20 | 2.466 | 29.59 |
| Ø 22 | 2.984 | 35.81 |
| Ø 25 | 3.853 | 46.24 |
| Ø 28 | 4.834 | 58.00 |
| Ø 32 | 6.313 | 75.76 |
How Steel Weight Is Calculated
The formula
Weight (kg) = cross-section area (mm²) × length (m) × density (kg/m³) ÷ 1,000,000. Carbon steel density is 7,850 kg/m³.
Worked example
Square tube 40×40×2 mm: area = 4×40×2 − 4×2² = 304 mm². 304 × 7,850 ÷ 1,000,000 = 2.39 kg/m, so a 6 m bar weighs 14.3 kg.
Beams & channels
IPE, HEA, HEB and UPN sections have complex profiles, so their weights come from the standard European section tables shown above.
Frequently Asked Questions
How much does a 6 m square tube 40×40×2 mm weigh?
A 40×40 mm square steel tube with 2 mm wall weighs about 2.39 kg per metre, so a standard 6 m length weighs about 14.3 kg.
What density is used to calculate steel weight?
Carbon steel is calculated at 7,850 kg/m³. Stainless steel is about 7,930 kg/m³ and aluminum about 2,700 kg/m³, which you can select in the calculator.
How do I calculate the total weight of my order?
Multiply the weight per metre (kg/m) by the length of each piece and by the number of pieces. The calculator does this for you and shows the total in kg or tonnes.
Why can the real weight differ from the calculated weight?
Mills produce steel within rolling tolerances, and hollow sections have rounded corners. Real weights are usually within a few percent of the theoretical value.
Can Stouhi Metal cut the steel to size and deliver it?
Yes. We cut steel to your lengths by saw or flame cutting at our yard in Chatila, Beirut, load it quickly and deliver across Lebanon.
Know your weight? Get your price today.
Stouhi Metal has supplied structural steel in Beirut since 1985 – tubes, beams, angles, pipes, plates and sheets, cut to size and delivered across Lebanon.