Calculating Troy Ounce Per Piece Weights
| Shape Form | Formula for Calculating Weight |
| Circles: | Diameter X Diameter X .7854 X Thickness X Density |
| Wire: | Diameter X Diameter X .7854 X Density X Length |
| Sheet, Strip: | Thickness X Width X Length X Density |
| Tubing: | Outside Diamter X 3.1416 X Wall X Length X Density |
| Material | Density (Troy Ounces Per Cubic Inch) |
| Sterling Silver | 5.456 |
| Fine Silver | 5.525 |
| Fine Gold | 10.180 |
| 14 Kt Yellow | 6.760 |
| 1/20 12 Kt Gold Filled | 4.720 |
