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I-Beam Weight Calculator — kg/m, lb/ft & Total Beam Weight

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Section dimension unit Overall beam depth Flange width Web thickness Flange thickness Beam length unit Beam length Number of beams Whole beams only.Material density (kg/m³) Use documented density for the actual material/grade.Procurement allowance (%) Applied to order mass, not theoretical kg/m.Rate per kg (optional) 0 disables cost.Target mass unit Target mass (optional) Reverse-solves whole entered-length beams.Standard / supplier kg per metre (optional) Reports variance without replacing ideal geometry.

Calculated result

1,450.68 kg · 3,198.2 lb

24.178 kg/m · 16.2469 lb/ft

3,080 mm² ideal rectangular-element area · 145.068 kg per piece

1,450.68 kg net batch mass

Enter rate/kg for procurement cost

Enter target mass for reverse whole-beam count

Enter standard/mill kg/m to compare against ideal geometry

Show the working

1. Ideal I-section area = 2 × 100 × 10 + (200 − 2 × 10) × 6 = 3,080 mm².
2. Unit mass = 3,080 × 10⁻⁶ × 7,850 = 24.178 kg/m.
3. Piece mass = 24.178 × 6 = 145.068 kg.
4. Net batch = 145.068 × 10 = 1,450.68 kg.

This is an ideal parallel-flange rectangular-element mass estimate. Rolled I/H beams include root radii and may have tapered flanges; use the current governing section table or mill certificate for a named standard profile, procurement, lifting-critical or structural work.

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