Steel Ball Size Chart
Unit: 1 inch = 25.4 mm
| Name | Diameter(mm) | Name | Diameter(mm) | Name | Diameter(mm) |
|---|---|---|---|---|---|
| 0.4 | 0.4000 | 6.0 | 6.0000 | 29/32 | 23.0188 |
| 0.5 | 0.5000 | 1/4 | 6.3500 | 15/16 | 23.8125 |
| 0.6 | 0.6000 | 17/64 | 6.7469 | 31/32 | 24.6063 |
| 0.7 | 0.7000 | 9/32 | 7.1438 | 25.0 | 25.0000 |
| 1/32 | 0.7938 | 5/16 | 7.9375 | 1" | 25.4000 |
| 0.8 | 0.8000 | 8.0 | 8.0000 | 1" 1/16 | 26.9875 |
| 1.0 | 1.0000 | 11/32 | 8.7312 | 1" 1/8 | 28.5750 |
| 3/64 | 1.1906 | 3/8 | 9.5250 | 1" 3/16 | 30.1625 |
| 1.2 | 1.2000 | 10.0 | 10.0000 | 1" 1/4 | 31.7500 |
| 1.5 | 1.5000 | 13/32 | 10.3188 | 1" 5/16 | 33.3375 |
| 1/16 | 1.5875 | 7/16 | 11.1125 | 1" 3/8 | 34.9250 |
| 5/64 | 1.9844 | 15/32 | 11.9062 | 1" 7/16 | 36.5125 |
| 2.0 | 2.0000 | 31/64 | 12.3031 | 1" 1/2 | 38.1000 |
| 3/32 | 2.3812 | 1/2 | 12.7000 | 1" 5/8 | 41.2750 |
| 2.5 | 2.5000 | 17/32 | 13.4938 | 1" 3/4 | 44.4500 |
| 2.5 | 2.5000 | 17/32 | 13.4938 | 1" 3/4 | 44.4500 |
| 7/64 | 2.7781 | 9/16 | 14.2875 | 1" 7/8 | 47.6250 |
| 3.0 | 3.0000 | 15.0 | 15.0000 | 2" | 50.8000 |
| 1/8 | 3.1750 | 19/32 | 15.0812 | 2" 3/16 | 55.5625 |
| 3.5 | 3.5000 | 5/8 | 15.8750 | 2" 1/4 | 57.1500 |
| 9/64 | 3.5719 | 21/32 | 16.6688 | 2" 5/16 | 58.7375 |
| 5/32 | 3.9688 | 11/16 | 17.4625 | 2" 1/2 | 63.5000 |
| 4.0 | 4.0000 | 23/32 | 18.2562 | 2" 3/4 | 69.8500 |
| 11/64 | 4.3656 | 3/4 | 19.0500 | 3" | 76.2000 |
| 4.5 | 4.3656 | 3/4 | 19.0500 | 3" | 76.2000 |
| 3/16 | 4.7625 | 20.0 | 20.0000 | 3" 1/2 | 88.9000 |
| 5.0 | 5.0000 | 13/16 | 20.6375 | 3" 3/4 | 95.2500 |
| 7/32 | 5.5562 | 27/32 | 21.4312 | 4" | 101.6000 |
| 15/64 | 5.9338 | 7/8 | 22.2250 | 4" 1/4 | 107.9500 |