Free Tool

Sheet Metal Weight Calculator

Calculate the weight of flat sheet metal blanks and multi-part jobs. Supports mild steel, stainless steel, aluminium, galvanised, and zinc anneal.

⚖️ Weight Calculator

Select a material and enter your blank dimensions to calculate weight. Add multiple parts to get a total job weight.

Results

Part Weight
kg
Total Weight
kg
Blank Area
mm²
Density Used
kg/m³

Parts List

Part Name W (mm) L (mm) T (mm) Qty

Results

Total Job Weight
kg
Total Parts

Part Breakdown

Material Densities

Standard densities used for all calculations:

MaterialDensity (kg/m³)
Mild Steel (CR/HR)7,850
Galvanised Steel7,850
Zinc Anneal7,850
Stainless 304 / 3168,000
Aluminium (all grades)2,710
Copper8,960
Brass8,500

Formula

Weight is calculated from the volume of the blank multiplied by material density:

W = (L × W × T) ÷ 1,000,000,000 × ρ × Qty

Where L, W, T are in mm and ρ (density) is in kg/m³. The division by 10⁹ converts mm³ to m³.

Tips

Use the Multi-Part mode to tally up a full cutting list. Each part can have its own thickness — useful for jobs mixing different gauges.

For folded parts, use the flat blank dimensions (before bending), not the finished part dimensions.