Calculate the mass of solid round gold wire from diameter and length. Add density and purity to distinguish total alloy weight from contained fine gold.
A solid round wire is modeled as a cylinder. Diameter is converted to radius before applying the circular cross-sectional area.
The wire is treated as a uniform solid cylinder. Tapered wire, hollow wire, coatings, surface irregularities and dimensional tolerances require a more specific model.
The default 19.32 g/cm³ corresponds to elemental gold. Jewellery alloys may require another density for accurate mass calculations. 2
Yes. Because cross-sectional area depends on radius squared, small diameter changes can materially affect weight per unit length.
Yes, using the appropriate alloy density and purity.
This version uses millimetres; convert other units before entering them.