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Coil Weight Calculator — OD, ID, Width & Density

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Solve for Diameter / width unit Weight / capacity unit Material density preset Custom density (kg/m³) Used only when Custom density is selected.Outer diameter Required in Coil weight mode.Core inside diameter Coil width Strip thickness unit Strip thickness (optional) Enables estimated unrolled length.Line speed unit Line speed (optional) 0 disables run-time estimate.Entered capacity (optional) 0 disables capacity utilization.Target coil mass Used in Maximum OD mode.

Calculated result

3,643.5 kg theoretical coil mass

3.644 metric t · 8,032.6 lb

408.1 lb/in PIW · 0.4641 m³ material volume

928.3 m estimated strip length

Enter capacity for a planning utilization check

Show the working

1. Normalize OD 1.2 m, ID 0.508 m and width 0.5 m.
2. Annular coil volume = π/4 × (1.2² − 0.508²) × 0.5 = 0.464145 m³.
3. Mass = 0.464145 × 7,850 = 3,643.54 kg.
4. PIW = 8,032.63 lb ÷ 19.69 in = 408.06 lb/in.

Theoretical annular-volume estimate. Real mass varies with material, coating, dimensional tolerance, winding gaps and measurement error.

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