Weight Calculator
Work out the weight of sheet, profile, tube and bar products in seconds.
Calculations use a steel density of 7.85 g/cm³. Corner radii are not deducted on box sections and angles, so actual catalogue weights may differ slightly.
How is steel weight calculated?
Every calculation rests on one idea: find the volume of the part and multiply it by the density of steel — 7.85 g/cm³, or 7,850 kg/m³.
Sheet: Thickness (mm) × 7.85 = kg/m². A 3 mm sheet weighs 23.55 kg/m², so a 2,000 × 1,000 mm plate is 47.1 kg.
Profiles and tubes: Cross-sectional area (mm²) × 0.00785 = kg/m. For hollow sections the inner area is subtracted from the outer.
Manufacturers roll box sections and angles with radiused corners, while this tool assumes sharp corners — so results can read about 2-3% above catalogue values. For critical projects, talk to us.
C, U, Z, omega and sigma profiles: For cold-formed (roll-formed) profiles, weight = centre-line developed width × thickness × 7.85 ÷ 1000; bend radii shorten the developed width slightly. The tool takes the inner bend radius equal to the thickness. For sigma and custom sections, enter the developed strip width directly.
Weight and section tables for solar profiles
kg/m, area, Ix and Wx of example sections for C, U and sigma piles, W-beams, purlins and rails:
All solar steel profiles →
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