英制與公制換算對照表,適合快速搜尋螺絲對應換算尺寸,當找到相對應的螺絲尺寸後在比對螺絲螺紋規格藉此找到適合的螺絲螺紋以利加快找到適合的尺寸,25.4(mm)=1″(inch)=8/8,所以1/8=3.175mm當要找1/2時等於4/8等於4×3.175mm=12.7mm以此概念類推,內容另檢附基本台語對照表方便查閱,常常在美國設備上聽到2#4#6#8#指的是機械螺紋的美規UNC機械粗牙螺絲規格表歡迎參考如有問題歡迎詢問討論。
英制公制換算尺寸一覽表 | |||||||
英吋 | 米厘 | 稱呼 | 英吋 | 米厘 | 稱呼 | 英吋 | 米厘 |
inch | mm | inch | mm | inch | mm | ||
1/64″ | 0.3969 | 1厘25 | 47/64″ | 18.6531 | 5分8厘75 | 2-1/8″ | 53.9750 |
1/32″ | 0.7938 | 1厘75 | 3/4″ | 19.0500 | 6分 | 2-1/4″ | 57.1500 |
3/64″ | 1.1906 | 3厘75 | 49/64″ | 19.4469 | 6分1厘25 | 2-3/8″ | 60.3250 |
1/16″ | 1.5875 | 5厘 | 25/32″ | 19.8438 | 6分2厘5 | 2-1/2″ | 63.5000 |
5/64″ | 1.9844 | 6厘25 | 51/64″ | 20.2406 | 6分3厘75 | 2-5/8″ | 66.6750 |
3/32″ | 2.3813 | 7厘5 | 13/16″ | 20.6375 | 6分5厘 | 2-3/4″ | 69.8500 |
7/64″ | 2.7781 | 8厘75 | 53/64″ | 21.0344 | 6分6厘25 | 2-7/8″ | 73.0250 |
1/8″ | 3.1750 | 1分 | 27/32″ | 21.4313 | 6分7厘5 | 3″ | 76.2000 |
9/64″ | 3.5719 | 1分1厘25 | 55/64″ | 21.8281 | 6分8厘75 | 3-1/8″ | 79.3750 |
5/32″ | 3.9688 | 1分2厘5 | 7/8″ | 22.2250 | 7分 | 2-1/4″ | 82.5500 |
11/64″ | 4.3656 | 1分3厘75 | 57/64″ | 22.6219 | 7分1厘25 | 3-3/8″ | 85.7250 |
3/16″ | 4.7625 | 1分5厘 | 29/32″ | 23.0188 | 7分2厘5 | 3-1/2″ | 88.9000 |
13/64″ | 5.1594 | 1分6厘25 | 59/64″ | 23.4156 | 7分3厘75 | 3-5/8″ | 92.0750 |
7/32″ | 5.5563 | 1分7厘5 | 15/16″ | 23.8125 | 7分5厘 | 3-3/4″ | 95.2500 |
15/64″ | 5.9531 | 1分8厘75 | 61/64″ | 24.2094 | 7分6厘25 | 3-7/8″ | 98.4250 |
1/4″ | 6.3500 | 2分 | 31/32″ | 24.6063 | 7分7厘5 | 4″ | 101.6000 |
17/64″ | 6.7469 | 2分1厘25 | 63/64″ | 25.0031 | 7分8厘75 | 4-1/8″ | 104.7750 |
9/32″ | 7.1438 | 2分2厘5 | 1″ | 25.4000 | 8分=1吋 | 4-1/4″ | 107.9500 |
19/64″ | 7.5406 | 2分3厘75 | 1-1/32″ | 26.1938 | 1吋2厘5 | 4-3/8″ | 111.1250 |
5/16″ | 7.9375 | 2分5厘 | 1-1/16″ | 26.9875 | 1吋5厘 | 4-1/2″ | 114.3000 |
21/64″ | 8.3344 | 2分6厘25 | 1-3/32″ | 27.7813 | 1吋7厘5 | 4-5/8″ | 117.4750 |
11/32″ | 8.7313 | 2分7厘5 | 1-1/8″ | 28.5750 | 1吋1分 | 4-3/4″ | 120.6500 |
23/64″ | 9.1281 | 2分8厘75 | 1-5/32″ | 29.3688 | 1吋1分2厘5 | 4-7/8″ | 123.8250 |
3/8″ | 9.5250 | 3分 | 1-3/16″ | 30.1625 | 1吋1分5厘 | 5″ | 127.0000 |
25/64″ | 9.9219 | 3分1厘25 | 1-7/32″ | 30.9563 | 1吋1分7厘5 | 5-1/8″ | 130.1750 |
13/32″ | 10.3188 | 3分2厘5 | 1-1/4″ | 31.7500 | 10分=1吋2分 | 5-1/4″ | 133.3500 |
27/64″ | 10.7156 | 3分3厘75 | 1-5/16″ | 33.3375 | 1吋2分5厘 | 5-3/8″ | 136.5250 |
7/16″ | 11.1125 | 3分5厘 | 1-3/8″ | 34.9250 | 1吋3分 | 5-1/2″ | 139.7000 |
29/64″ | 11.5094 | 3分6厘25 | 1-7/16″ | 36.5125 | 1吋3分5厘 | 5-5/8″ | 142.8750 |
15/32″ | 11.9063 | 3分7厘5 | 1-1/2″ | 38.1000 | 12分=1吋4分 | 5-3/4″ | 146.0500 |
31/64″ | 12.3031 | 3分8厘75 | 1-9/16″ | 39.6875 | 1吋4分5厘 | 5-7/8″ | 149.2250 |
1/2″ | 12.7000 | 4分 | 1-5/8″ | 41.2750 | 1吋5分 | 6″ | 152.4000 |
33/64″ | 13.0969 | 4分1厘25 | 1-11/16″ | 42.8625 | 1吋5分5厘 | 7″ | 177.8000 |
17/32″ | 13.4938 | 4分2厘5 | 1-3/4″ | 44.4500 | 1吋6分 | 8″ | 203.2000 |
35/64″ | 13.8906 | 4分3厘75 | 1-13/16″ | 46.0375 | 1吋6分5厘 | 9″ | 228.6000 |
9/16″ | 14.2875 | 4分5厘 | 1-7/8″ | 47.6250 | 1吋7分 | 10″ | 254.0000 |
37/64″ | 14.6844 | 4分6厘25 | 1-15/16″ | 49.2125 | 1吋7分5厘 | 11″ | 279.4000 |
19/32″ | 15.0813 | 4分7厘5 | 2″ | 50.8000 | 16分=2吋 | 12″ | 304.8000 |
39/64″ | 15.4781 | 4分8厘75 | 13″ | 330.2000 | |||
5/8″ | 15.8750 | 5分 | 14″ | 355.6000 | |||
41/64″ | 16.2719 | 5分1厘25 | 15″ | 381.0000 | |||
21/32″ | 16.6688 | 5分2厘5 | 16″ | 406.4000 | |||
43/64″ | 17.0656 | 5分3厘75 | 17″ | 431.8000 | |||
11/16″ | 17.4625 | 5分5厘 | 18″ | 457.2000 | |||
45/64″ | 17.8594 | 5分6厘25 | 19″ | 482.6000 | |||
23/32″ | 18.2563 | 5分7厘5 | 20″ | 508.0000 |