Steel Weight Calculator
Steel weight calculator for sheet, plate, bar, and tube
Estimate the weight of steel, aluminium, stainless, and other common fabrication materials by shape, size, and quantity.
How this calculator works
Use this metal weight calculator to estimate part weight for common fabrication shapes.
Select your material
Choose the shape you want to calculate
Enter the part dimensions and quantity
The calculator works out the volume, applies the material density, and estimates total weight
The basic formula is:
Weight = Volume × Density
For sheet and plate, the calculator uses:
Length × Width × Thickness × Material Density
For bars, tubes, and angles, the calculator applies the right shape formula before calculating weight.
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FAQs
To calculate steel plate weight, multiply length by width by thickness to get volume, then multiply by the density of steel. Mild steel is commonly estimated at 7,850 kg/m³.
The basic formula is:
Weight = Volume × Density
The volume formula changes depending on the shape. A plate uses length × width × thickness, while a round bar uses π × radius² × length.
Yes. Select an aluminium grade, enter the shape and dimensions, and the calculator will estimate part weight and total batch weight.
Actual weight can vary because of mill tolerance, alloy variation, coatings, and supplied material differences. Use the calculator for planning and estimating, not certified weights.
Yes, if a price-per-kg or price-per-lb field is included. Enter your material price to estimate cost for one part or a batch.
You can use it as one input in your quoting process, but it should not be the only input. Accurate quoting also needs to account for material, labour, machine rates, overhead, secondary processes, and margin.
Ready to quote more than material weight?
Tempus Tools helps fabrication shops turn customer files, material costs, machine rates, and pricing rules into faster, more consistent quotes.