Steel from m³ to kg and Tonnes Calculator

Convert steel volume in cubic metres to kilograms and metric tonnes, or convert kilograms back to cubic metres.

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Formula

Weight (kg) = volume (m³) × density (kg/m³). Reverse conversion: volume (m³) = weight (kg) ÷ density (kg/m³).

Density preset and source

The 7,850 kg/m³ preset is a standard estimating value for structural steel; actual alloy density and product tolerances can differ. Reference: AISC Shapes Database.

Scope

This is a material quantity conversion. It does not include waste, voids or product tolerances and does not calculate structural capacity.

General m³ to kg calculator · Steel plate weight · Aluminum sheet weight

Misha Noyr, M.Eng.

Misha Noyr, M.Eng.

Civil Engineer · 15+ yrs · structural design, geotechnics. Full bio ↓