Metal Shape Weight Calculator

How the metal shape weight calculator works

Calculate volume in cubic metres, then multiply by entered density for mass. Plate volume uses length × width × thickness with millimetres converted to metres. Round-bar volume is πd²L/4; tube volume subtracts the inner circle from the outer. Multiply one-piece mass by the whole piece count.

Use actual dimensions and density for the real material/state. Width and thickness apply to plates; diameters apply to round modes. Tube inside diameter must be smaller than outside diameter. This is geometric mass, excluding packaging and coatings, and does not establish section strength, grade suitability, lifting capacity or nominal rolled-section properties.

Quantities use the stated units and finite bounded inputs. Whole purchases round up under the documented model; cost components round half-up to cents before totals are summed. Undefined ratios stay unavailable. π and logarithms use normal numeric precision. Display rounding does not alter the entered assumptions.

Worked example

A 2 m × 100 mm × 10 mm plate has 0.002 m³ volume. At an illustrative 7,850 kg/m³ it is 15.7 kg. Five pieces total 78.5 kg; ten pieces total 157 kg.

Sources and assumptions

The source material explains the underlying calculation or pricing structure. Entered prices, costs, schedules and scenario choices are your assumptions; this tool does not obtain supplier quotes or predict actual results.

• OpenStax University Physics: density as mass per volume