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Duct Weight Calculator — HVAC Sheet Metal kg/m & Total

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Duct shape Dimension unit Width Rectangular only.Height Rectangular only.Diameter Round only.Sheet thickness Enter actual nominal/project sheet thickness.Material density (kg/m³) Typical carbon/galvanized steel base density; replace with project value.Straight length unit Straight length per piece Physical piece quantity Fabrication allowance (%) Optional explicit allowance for your estimating convention.Material rate per kg (optional) 0 disables cost.Target mass unit Target mass (optional) Reverse-solves whole equal-length pieces before allowance.Supplier/fabricator kg/m (optional) Compare finished published mass with ideal straight-sheet geometry.

Calculated result

226.08 kg

11.304 kg/m bare straight duct · 7.5959 lb/ft

22.608 kg per straight piece

226.08 kg bare project mass

226.08 kg estimating mass

Show the working

1. 2 × (600 + 300) = 1,800 mm perimeter
2. Bare kg/m = 1.8 m × 0.0008 m × 7,850 kg/m³ = 11.304 kg/m.
3. Project mass = 11.304 × 2 × 10 = 226.08 kg.

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