The conversion of Inch and Millimeter
Date:
2018-01-17 17:51
| inch | mm | API regular pin |
| 3 3/4 | 95.3 | 2 3/8 reg pin" |
| 3 7/8 | 98.4 | 2 3/8 reg pin" |
| 4 1/8 | 104.8 | 2 3/8 reg pin" |
| 4 1/4 | 108 | 2 3/8 reg pin" |
| 4 1/2 | 114.3 | 2 3/8 reg pin" |
| 4 5/8 | 117.5 | 2 7/8 reg pin" |
| 4 3/4 | 120.7 | 2 7/8 reg pin" |
| 4 7/8 | 123.8mm | 2 7/8 reg pin" |
| 5 1/2 | 139.7mm | 3 1/2 reg pin" |
| 5 5/8 | 142.9mm | 3 1/2 reg pin" |
| 5 2/3 | 143.9mm | 3 1/2 reg pin" |
| 5 3/4 | 146.1mm | 3 1/2 reg pin" |
| 5 7/8 | 149.2mm | 3 1/2 reg pin" |
| 6 | 152.4mm | 3 1/2 reg pin" |
| 6 1/8 | 155.6mm | 3 1/2 reg pin" |
| 6 1/4 | 158.8mm | 3 1/2 reg pin" |
| 6 1/2 | 165.1mm | 3 1/2 reg pin" |
| 6 5/8 | 168.3mm | 3 1/2 reg pin" |
| 6 3/4 | 171.5mm | 3 1/2 reg pin" |
| 7 1/2 | 190.5mm | 4 1/2 reg pin" |
| 7 5/8 | 193.7mm | 4 1/2 reg pin" |
| 7 7/8 | 200mm | 4 1/2 reg pin" |
| 8 3/8 | 212.7mm | 4 1/2 reg pin" |
| 8 1/2 | 215.9mm | 4 1/2 reg pin" |
| 8 5/8 | 219.1mm | 4 1/2 reg pin" |
| 8 3/4 | 220mm | 4 1/2 reg pin" |
| 9 1/2 | 241.3mm | 6 5/8 reg pin" |
| 9 5/8 | 244.5mm | 6 5/8 reg pin" |
| 9 7/8 | 250.8mm | 6 5/8 reg pin" |
| 10 1/2 | 266.7mm | 6 5/8 reg pin" |
| 10 5/8 | 269.9mm | 6 5/8 reg pin" |
| 11 | 279.4mm | 6 5/8 reg pin" |
| 11 5/8 | 295.3mm | 6 5/8 reg pin" |
| 12 | 304.8mm | 6 5/8 reg pin" |
| 12 1/4 | 311.2mm | 6 5/8 reg pin" |
| 12 5/16 | 312.2mm | 6 5/8 reg pin" |
| 12 3/8 | 314.3mm | 6 5/8 reg pin" |
| 12 7/16 | 315.9mm | 6 5/8 reg pin" |
| 12 3/8 | 314.3mm | 6 5/8 reg pin" |
| 12 7/16 | 315.9mm | 6 5/8 reg pin" |
| 12 5/8 | 320.7mm | 6 5/8 reg pin" |
| 13 1/8 | 333.4mm | 6 5/8 reg pin" |
| 13 1/2 | 342.9mm | 6 5/8 reg pin" |
| 13 5/8 | 346.1mm | 6 5/8 reg pin" |
| 13 3/4 | 349.3mm | 6 5/8 reg pin" |
| 14 1/2 | 368.3mm | 7 5/8 reg pin" |
| 14 3/4 | 374.7mm | 7 5/8 reg pin" |
| 15 1/2 | 393.7mm | 7 5/8 reg pin" |
| 16 | 406.4mm | 7 5/8 reg pin" |
| 17 1/2 | 444.5mm | 7 5/8 reg pin" |
| 18 7/8 | 479.4mm | 7 5/8 reg pin" |
| 20 | 508mm | 7 5/8 reg pin" |
| 22 | 558.8mm | 7 5/8 reg pin" |
| 24 | 609.6mm | 7 5/8 reg pin" |
| 26 | 660.4mm | 7 5/8 reg pin" |
| 28 | 711.2mm | 7 5/8 reg pin" |
| 36 | 914.4mm | 7 5/8 reg pin" |
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