Quick and Easy Square Bar Weight Calculator
Have you ever struggled to determine the weight of a square steel bar for your project? This article introduces a straightforward square bar weight calculator that simplifies this task. By…
Have you ever needed to quickly calculate the weight of a flat steel bar? This handy online tool makes it a breeze. Simply enter the bar dimensions and instantly get the weight per meter. We’ll explain how to use the calculator and provide some helpful tips from experienced mechanical engineers. Read on to learn more about streamlining your steel projects.
According to the dimensions, shape, weight, and allowable deviation specified by GB/t702-2008, the thickness of hot-rolled flat steel typically ranges from 3mm to 60mm, while the width ranges from 10mm to 200mm.
Hot-rolled flat steel can be delivered either according to its actual weight or its theoretical weight, depending on the market specifications.
You can use the following calculator to calculate the weight of flat bar.
Related Tool: Steel Weight Calculator
| Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight |
| kg/m | kg/m | kg/m | kg/m | ||||
| 12×4 | 0.38 | 16×9 | 1.15 | 20×10 | 1.57 | 25×8 | 1.57 |
| 5 | 0.47 | 10 | 1.26 | 22×4 | 0.69 | 9 | 1.77 |
| 6 | 0.57 | 18×4 | 0.57 | 5 | 0.86 | 10 | 1.96 |
| 7 | 0.66 | 5 | 0.71 | 6 | 1.04 | 11 | 2.16 |
| 8 | 0.75 | 6 | 0.85 | 7 | 1.21 | 12 | 2.36 |
| 14×4 | 0.44 | 7 | 0.99 | 8 | 1.38 | 14 | 2.75 |
| 5 | 0.55 | 8 | 1.13 | 9 | 1.55 | 16 | 3.14 |
| 6 | 0.66 | 9 | 1.27 | 10 | 1.73 | 28×3 | 0.66 |
| 7 | 0.77 | 10 | 1.41 | 11 | 1.9 | 4 | 0.88 |
| 8 | 0.88 | 20×4 | 0.63 | 12 | 2.07 | 5 | 1.1 |
| 16×4 | 0.5 | 5 | 0.79 | 25×3 | 0.59 | 6 | 1.32 |
| 5 | 0.63 | 6 | 0.94 | 4 | 0.79 | 7 | 1.54 |
| 6 | 0.75 | 7 | 1.1 | 5 | 0.98 | 8 | 1.76 |
| 7 | 0.88 | 8 | 1.26 | 6 | 1.18 | 9 | 1.98 |
| 8 | 1 | 9 | 1.41 | 7 | 1.37 | 10 | 2.2 |
| Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight |
| kg/m | kg/m | kg/m | kg/m | ||||
| 28×11 | 2.42 | 30×16 | 3.77 | 32×18 | 4.52 | 36×20 | 5.65 |
| 12 | 2.64 | 18 | 4.24 | 20 | 5.02 | 40×3 | 0.94 |
| 14 | 3.08 | 20 | 4.71 | 36×3 | 0.85 | 4 | 1.26 |
| 16 | 3.53 | 32×3 | 0.75 | 4 | 1.13 | 5 | 1.57 |
| 16 | 3.53 | 32×3 | 0.75 | 4 | 1.13 | 5 | 1.57 |
| 30×3 | 0.71 | 4 | 1.01 | 5 | 1.41 | 6 | 1.88 |
| 4 | 0.94 | 5 | 1.25 | 6 | 1.69 | 7 | 2.2 |
| 5 | 1.18 | 6 | 1.5 | 7 | 1.97 | 8 | 2.51 |
| 6 | 1.41 | 7 | 1.76 | 8 | 2.26 | 9 | 2.83 |
| 7 | 1.65 | 8 | 2.01 | 9 | 2.51 | 10 | 3.14 |
| 8 | 1.88 | 9 | 2.26 | 10 | 2.82 | 11 | 3.45 |
| 9 | 2.12 | 10 | 2.54 | 11 | 3.11 | 12 | 3.77 |
| 10 | 2.36 | 11 | 2.76 | 12 | 3.39 | 14 | 4.4 |
| 11 | 2.59 | 12 | 3.01 | 14 | 3.95 | 16 | 5.02 |
| 12 | 2.83 | 14 | 3.51 | 16 | 4.52 | 18 | 5.65 |
| 14 | 3.36 | 16 | 4.02 | 18 | 5.09 | 20 | 6.28 |
| 45×3 | 1.06 | 50×4 | 1.57 | 56×5 | 2.2 | 60×6 | 2.83 |
| 4 | 1.41 | 5 | 1.96 | 6 | 2.64 | 7 | 3.3 |
| 5 | 1.77 | 6 | 2.36 | 7 | 3.08 | 8 | 3.77 |
| Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight |
| kg/m | kg/m | kg/m | kg/m | ||||
| 6 | 2.12 | 7 | 2.75 | 8 | 3.52 | 9 | 4.24 |
| 7 | 2.47 | 8 | 3.14 | 9 | 3.95 | 10 | 4.71 |
| 8 | 2.83 | 9 | 3.53 | 10 | 4.39 | 11 | 5.18 |
| 9 | 3.18 | 10 | 3.93 | 11 | 4.83 | 12 | 5.65 |
| 10 | 3.53 | 11 | 4.32 | 12 | 5.27 | 14 | 6.59 |
| 11 | 3.89 | 12 | 4.71 | 14 | 6.15 | 16 | 7.54 |
| 12 | 4.24 | 14 | 5.5 | 16 | 7.03 | 18 | 8.48 |
| 14 | 4.95 | 16 | 6.28 | 18 | 7.91 | 20 | 9.42 |
| 16 | 5.65 | 18 | 7.07 | 20 | 8.79 | 63×3 | 1.48 |
| 18 | 6.36 | 20 | 7.85 | 60×3 | 1.41 | 4 | 1.98 |
| 20 | 7.07 | 56×3 | 1.32 | 4 | 1.88 | 5 | 2.47 |
| 50×3 | 1.18 | 4 | 1.76 | 5 | 2.36 | 6 | 2.97 |
| 63×7 | 3.46 | 65×8 | 4.08 | 70×9 | 4.95 | 75×10 | 5.89 |
| 8 | 3.95 | 9 | 4.59 | 10 | 5.5 | 11 | 6.48 |
| 9 | 4.45 | 10 | 5.1 | 11 | 6.04 | 12 | 7.07 |
| 10 | 4.94 | 11 | 5.61 | 12 | 6.59 | 14 | 8.24 |
| 11 | 5.44 | 12 | 6.12 | 14 | 7.69 | 16 | 9.42 |
| 12 | 5.93 | 14 | 7.14 | 16 | 8.79 | 18 | 10.6 |
| 14 | 6.92 | 16 | 8.16 | 18 | 9.89 | 20 | 11.78 |
| Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight |
| kg/m | kg/m | kg/m | kg/m | ||||
| 16 | 7.91 | 18 | 9.19 | 20 | 10.99 | 80×3 | 1.88 |
| 18 | 8.9 | 20 | 10.21 | 75×3 | 1.77 | 4 | 2.51 |
| 20 | 9.69 | 70×3 | 1065 | 4 | 2.36 | 5 | 3.14 |
| 65×3 | 1.53 | 4 | 2.2 | 5 | 2.94 | 6 | 3.77 |
| 4 | 2.04 | 5 | 2.75 | 6 | 3.53 | 7 | 4.4 |
| 5 | 2.55 | 6 | 3.3 | 7 | 4.12 | 8 | 5.02 |
| 6 | 3.06 | 7 | 3.85 | 8 | 4.71 | 9 | 5.65 |
| 7 | 3.57 | 8 | 4.4 | 9 | 5.3 | 10 | 6.28 |
| 80×11 | 6.91 | 85×12 | 8.01 | 90×14 | 9.89 | 95×14 | 10.44 |
| 12 | 7.54 | 14 | 9.34 | 16 | 11.3 | 16 | 11.93 |
| 14 | 8.79 | 16 | 10.68 | 18 | 12.72 | 18 | 13.42 |
| 16 | 10.05 | 18 | 12.01 | 20 | 14.13 | 20 | 14.92 |
| 18 | 11.3 | 20 | 12.35 | 30 | 21.2 | 22 | 16.41 |
| 20 | 12.56 | 90×3 | 2.12 | 95×3 | 2.24 | 25 | 18.84 |
| 85×3 | 2 | 4 | 2.83 | 4 | 2.98 | 28 | 20.88 |
| 4 | 2.67 | 5 | 3.53 | 5 | 3.73 | 30 | 22.37 |
| 5 | 3.34 | 6 | 4.24 | 6 | 4.47 | 100×3 | 2.36 |
| 6 | 4 | 7 | 4.95 | 7 | 5.22 | 4 | 3.14 |
| 7 | 4.67 | 8 | 5.65 | 8 | 5.97 | 5 | 3.93 |
| Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight |
| kg/m | kg/m | kg/m | kg/m | ||||
| 8 | 5.34 | 9 | 6.36 | 9 | 6.71 | 6 | 4.71 |
| 9 | 6.01 | 10 | 7.07 | 10 | 7.46 | 7 | 5.5 |
| 10 | 6.67 | 11 | 7.77 | 11 | 8.2 | 8 | 6.28 |
| 11 | 7.34 | 12 | 8.48 | 12 | 8.95 | 9 | 7.07 |
| 100×10 | 7.85 | 105×7 | 5.77 | 110×4 | 3.45 | 110×28 | 24.18 |
| 11 | 8.64 | 8 | 6.59 | 5 | 4.32 | 30 | 25.91 |
| 12 | 9.42 | 9 | 7.42 | 6 | 5.18 | 120×3 | 2.83 |
| 14 | 10.99 | 10 | 8.24 | 7 | 6.04 | 4 | 3.77 |
| 16 | 12.56 | 11 | 9.07 | 8 | 6.91 | 5 | 4.71 |
| 18 | 14.13 | 12 | 9.89 | 9 | 7.77 | 6 | 5.65 |
| 20 | 15.7 | 14 | 11.54 | 10 | 8.64 | 7 | 6.59 |
| 22 | 17.27 | 16 | 13.19 | 11 | 9.5 | 8 | 7.54 |
| 25 | 19.63 | 18 | 14.84 | 12 | 10.36 | 9 | 8.48 |
| 28 | 21.98 | 20 | 16.49 | 14 | 12.09 | 10 | 9.42 |
| 30 | 23.55 | 22 | 18.18 | 16 | 13.82 | 11 | 10.36 |
| 105×3 | 2.47 | 25 | 20.61 | 18 | 15.54 | 12 | 11.3 |
| 4 | 3.3 | 28 | 23.08 | 20 | 17.27 | 14 | 13.19 |
| 5 | 4.12 | 30 | 24.73 | 22 | 19 | 16 | 15.07 |
| Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight | Spec. (mm) | Weight |
| kg/m | kg/m | kg/m | kg/m | ||||
| 120×20 | 18.84 | 125×14 | 13.74 | 130×10 | 10.21 | 140×10 | 10.99 |
| 22 | 20.72 | 16 | 15.7 | 11 | 11.23 | 11 | 12.09 |
| 25 | 23.55 | 18 | 17.66 | 12 | 12.25 | 12 | 13.19 |
| 28 | 26.38 | 20 | 19.63 | 14 | 14.29 | 14 | 15.39 |
| 30 | 28.26 | 22 | 21.5 | 16 | 16.33 | 16 | 17.58 |
| 125×3 | 2.94 | 25 | 24.53 | 18 | 18.87 | 18 | 19.78 |
| 4 | 3.93 | 28 | 27.48 | 20 | 20.41 | 20 | 21.98 |
| 5 | 4.91 | 30 | 29.44 | 22 | 22.45 | 150×3 | 3.53 |
| 6 | 5.89 | 130×3 | 3.06 | 140×3 | 3.3 | 4 | 4.71 |
| 7 | 6.67 | 4 | 4.08 | 4 | 4.4 | 5 | 5.89 |
| 8 | 7.85 | 5 | 5.1 | 5 | 5.5 | 6 | 7.07 |
| 9 | 8.83 | 6 | 6.12 | 6 | 6.59 | 7 | 8.24 |
| 10 | 9.81 | 7 | 7.14 | 7 | 7.69 | 8 | 9.42 |
| 11 | 10.79 | 8 | 8.16 | 8 | 8.79 | 9 | 10.6 |
| 12 | 11.78 | 9 | 9.18 | 9 | 9.89 | 10 | 11.78 |
| 150×11 | 12.95 | 150×14 | 16.49 | 150×18 | 21.2 | 150×20 | 23.55 |
| 12 | 14.13 | 16 | 18.84 | ||||
Flat steel refers to a type of steel with a width of 12-300mm, thickness of 3-60mm, rectangular section, and slightly rounded edges. It can be used as a finished product or as raw material for welded pipes and thin slabs for laminated rolling.
Flat steel is commonly used for making hoop iron, tools, and mechanical parts, as well as for house frame structural components and escalators in buildings.
As the founder of MachineMFG, I have dedicated over a decade of my career to the metalworking industry. My extensive experience has allowed me to become an expert in the fields of sheet metal fabrication, machining, mechanical engineering, and machine tools for metals. I am constantly thinking, reading, and writing about these subjects, constantly striving to stay at the forefront of my field. Let my knowledge and expertise be an asset to your business.
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