Conversion Chart
| Ounces | Irons | Inches | Millimeters | Depiction |
|---|---|---|---|---|
| 1 oz | 0.75 | 1/64 inches | 0.4 mm |  |
| 2 oz | 1.50 | 1/32 inches | 0.8 mm |  |
| 3 oz | 2.25 | 3/64 inches | 1.2 mm |  |
| 4 oz | 3.00 | 1/16 inches | 1.6 mm |  |
| 5 oz | 3.75 | 5/64 inches | 2.0 mm |  |
| 6 oz | 4.50 | 3/32 inches | 2.4 mm |  |
| 7 oz | 5.25 | 7/64 inches | 2.8 mm |  |
| 8 oz | 6.00 | 1/8 inches | 3.2 mm |  |
| 9 oz | 6.75 | 9/64 inches | 3.6 mm |  |
| 10 oz | 7.50 | 5/32 inches | 4.0 mm |  |
| 11 oz | 8.25 | 11/64 inches | 4.4 mm |  |
| 12 oz | 9.00 | 3/16 inches | 4.8 mm |  |
| 13 oz | 9.75 | 13/64 inches | 5.2 mm |  |
| 14 oz | 10.50 | 7/32 inches | 5.6 mm |  |
| 15 oz | 11.25 | 15/64 inches | 6.0 mm |  |
| 16 oz | 12.00 | 1/4 inches | 6.4 mm |  |