Calculate mild steel angle weight per meter and per piece. Supports equal and unequal leg MS angles with the standard (2L - T) × T × 0.00785 formula.
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Weight per Meter (kg/m)
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Weight per Piece (kg)
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Total Weight (kg)
What is the MS Angle Weight Calculator?
The MS angle weight calculator is a specialized engineering tool that computes the exact weight of mild steel angle sections based on their dimensions. Using the industry-standard formula, it provides weight per meter, weight per piece, and total weight for any number of angles. The calculator handles both equal leg angles (common in structural work) and unequal leg angles (used where asymmetric loading is expected). This makes it invaluable for structural engineers, fabrication workshops, construction contractors, and procurement professionals who deal with steel angle sections regularly.
MS angles are one of the most widely used structural steel shapes in the construction and fabrication industries. Their L-shaped cross-section provides excellent structural efficiency, allowing them to carry significant loads while using less material than solid sections. Accurate weight calculation is critical for structural design (load calculations), cost estimation (steel is priced by weight), procurement (ordering correct quantities), and logistics (transport capacity planning). A small error in weight estimation can cascade into structural safety issues or significant budget overruns on large projects.
How to Use the MS Angle Weight Calculator
Using this calculator takes just a few steps:
Select Angle Type: Toggle between Equal Angle (both legs same length) or Unequal Angle (legs of different lengths).
Enter Dimensions: Input leg length(s) in mm and thickness in mm. Standard sizes include 40×40×5, 50×50×6, 75×75×8mm for equal angles.
Enter Length and Quantity: Specify the length per piece (typically 6m) and the number of pieces needed.
Calculate: Click Calculate to instantly get weight per meter, per piece, and total weight for your order.
The calculator automatically uses the correct formula based on your angle type selection, so you don't need to remember different formulas for different angle configurations.
MS Angle Weight Formula Derivation
The weight of an MS angle is calculated from its cross-sectional area and length. For an equal angle with leg length L and thickness T, the cross-section can be divided into two rectangles: one of size L × T and another of size (L - T) × T. Total area = L×T + (L-T)×T = T(2L - T). Weight per meter = Area (mm²) × Density (7850 kg/m³) / 10⁶ = T(2L - T) × 0.00785. For unequal angles, area = T(L1 + L2 - T). This formula gives weight in kg per meter, which is then multiplied by length and quantity for total weight.
Why Accurate MS Angle Weight Matters
In structural engineering, every beam, column, and truss member must be designed within precise load limits. The self-weight of steel members is a significant component of the total load a structure must support. Underestimating member weight can lead to under-designed foundations and support systems. In procurement, steel is purchased by weight. A 1% error on a 100-ton order means 1 ton of material cost variance. In fabrication and logistics, knowing exact weights is essential for crane selection, transport vehicle capacity, and handling equipment planning. This calculator helps professionals across the construction supply chain get accurate weight data instantly.
Frequently Asked Questions
How to calculate MS angle weight?
MS angle weight is calculated using the formula: W = (2L - T) × T × 0.00785 × length. For unequal angles: W = (L1 + L2 - T) × T × 0.00785 × length. Example: 50×50×6mm angle, 6m length: (100 - 6) × 6 × 0.00785 × 6 = 94 × 6 × 0.00785 × 6 = 26.56 kg. The constant 0.00785 converts the cross-sectional area in mm² to weight per meter.
What is the MS angle weight formula?
The MS angle weight formula is W = (2L - T) × T × 0.00785 for equal angles. For unequal angles: W = (L1 + L2 - T) × T × 0.00785. The derivation: cross-sectional area = L×T + (L-T)×T = T(2L - T) for equal angles. Multiply by steel density (7850 kg/m³) and divide by 10⁶ for unit conversion to get the constant 0.00785.
What is the weight of MS angle 50×50×6 per meter?
MS angle 50×50×6mm weighs approximately 4.43 kg per meter. Calculation: (2 × 50 - 6) × 6 × 0.00785 = 94 × 6 × 0.00785 = 4.43 kg/m. A 6m length weighs 26.56 kg, and a 12m length weighs 53.12 kg. This size is one of the most commonly used MS angle sections.
What is the weight of MS angle 75×75×8?
MS angle 75×75×8mm weighs approximately 8.92 kg per meter. Calculation: (2 × 75 - 8) × 8 × 0.00785 = 142 × 8 × 0.00785 = 8.92 kg/m. Per 6m: 53.51 kg. Per 12m: 107.02 kg. This section is used in heavy structural applications.
What is the weight of MS angle 40×40×5?
MS angle 40×40×5mm weighs approximately 2.94 kg per meter. Calculation: (2 × 40 - 5) × 5 × 0.00785 = 75 × 5 × 0.00785 = 2.94 kg/m. Per 6m: 17.66 kg. This size is used in light fabrication, frames, and grills.
What is the weight of MS angle 65×65×6?
MS angle 65×65×6mm weighs approximately 5.84 kg per meter. Calculation: (2 × 65 - 6) × 6 × 0.00785 = 124 × 6 × 0.00785 = 5.84 kg/m. Per 6m: 35.05 kg. Used in medium structural frames and industrial supports.
What is the weight of MS angle 100×100×10?
MS angle 100×100×10mm weighs approximately 14.92 kg per meter. Calculation: (2 × 100 - 10) × 10 × 0.00785 = 190 × 10 × 0.00785 = 14.92 kg/m. Per 6m: 89.49 kg. This heavy section is used in columns, beams, and industrial structures.
What is the weight of 25×25×3 MS angle?
MS angle 25×25×3mm weighs approximately 1.11 kg per meter. Calculation: (2 × 25 - 3) × 3 × 0.00785 = 47 × 3 × 0.00785 = 1.11 kg/m. Per 6m: 6.65 kg. This small angle is used for light brackets, frames, and trim.
How to calculate unequal MS angle weight?
For unequal MS angles, such as 75×50×6mm, use: W = (L1 + L2 - T) × T × 0.00785 × length. Example: (75 + 50 - 6) × 6 × 0.00785 = 119 × 6 × 0.00785 = 5.60 kg/m. Our calculator supports both equal and unequal angles — just toggle the type selector.
What are standard MS angle sizes?
Standard MS angle sizes range from 20×20×3mm to 200×200×20mm for equal angles. Unequal angle sizes range from 30×20×3mm to 150×75×12mm. Common sizes stocked by suppliers: 25×25×5, 40×40×5, 50×50×6, 65×65×6, 75×75×8, 90×90×8, 100×100×10mm. Standard lengths: 6m and 12m.
What is the density of MS angle?
The density of mild steel used in angle sections is 7850 kg/m³ or 7.85 g/cm³. This is the standard density for IS 2062 Grade A/B mild steel, which is used for all structural steel angles in India. The density may vary slightly (7840-7860 kg/m³) for different steel grades but 7850 is used for all standard weight calculations.
How to convert MS angle weight per meter to per foot?
To convert MS angle weight per meter to per foot: multiply by 0.3048. Example: 50×50×6mm angle weighs 4.43 kg/m = 4.43 × 0.3048 = 1.35 kg/ft. For weight in pounds per foot: multiply kg/ft by 2.2046. So 4.43 kg/m = 1.35 kg/ft = 2.98 lb/ft.
What are common applications of MS angles?
MS angles are used in structural steel framing for buildings, roof trusses, column bracing, mezzanine floors, and industrial sheds. In fabrication: machine frames, conveyor supports, racks, gates, and window frames. In infrastructure: transmission towers, railway platforms, bridge girders, and sign structures. In residential: staircase stringers, shelving, and pergolas.
What is the difference between IS 2062 and ASTM A36 angles?
IS 2062 (Indian Standard) and ASTM A36 (American Standard) are both specifications for structural steel. IS 2062 Grade A has minimum yield strength of 250 MPa, similar to ASTM A36 (250 MPa). Both have density of 7850 kg/m³, so weight calculations are identical. IS 2062 is used in India, while ASTM A36 is used internationally. The dimensional tolerances may differ slightly.