億宣貿易有限公司-軸承,培林,Bearing,軸受,SKF,NSK,KOYO,NTN -- 英制公制對照表
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英制公制對照表

新增網頁3

英吋(inch) / 1"=25.4mm

英制
(分數)
公制
(小數)
0" 1" 2" 3" 4" 5" 6" 7" 8" 9"
  0   25.4000 50.8000 76.2000 101.6000 127.0000 152.4000 177.8000 203.2000

228.600

1/64
.015625
0.3969
25.7969
51.1969
76.5969
101.9969
127.3969
152.7969
178.1969
203.5969
228.997
1/32
.031250
0.7938
26.1938
51.5938
76.9938
102.3938
127.7938
153.1938
178.5938
203.9938
229.394
3/64
.046875
1.1906
26.5906
51.9906
77.3906
102.7906
128.1906
153.5906
178.9906
204.3906
229.791
1/16
.062500
1.5875
26.9875
52.3875
77.7875
103.1875
128.5875
153.9875
179.3875
204.7875
230.188
5/64
.078125
1.9844
27.3844
52.7844
78.1844
103.5844
128.9844
154.3844
179.7844
205.1844
230.584
3/32
.093750
2.3812
27.7812
53.1812
78.5812
103.9812
129.3812
154.7812
180.1812
205.5812
230.981
7/64
.109375
2.7781
28.1781
53.5781
78.9781
104.3781
129.7781
155.1781
180.5781
205.9781
231.378
1/8
.125000
3.1750
28.5750
53.9750
79.3750
104.7750
130.1750
155.5750
180.9750
206.3750
231.775
9/64
.140625
3.5719
28.9719
54.3719
79.7719
105.1719
130.5719
155.9719
181.3719
206.7719
232.172
5/32
.156250
3.9688
29.3688
54.7688
80.1688
105.5688
130.9688
156.3688
181.7688
207.1688
232.569
11/64
.171875
4.3656
29.7656
55.1656
80.5656
105.9656
131.3656
156.7656
182.1656
207.5656
232.966
3/16
.187500
4.7625
30.1625
55.5625
80.9625
106.3625
131.7625
157.1625
182.5625
207.9625
233.362
13/64
.203125
5.1594
30.5594
55.9594
81.3594
106.7594
132.1594
157.5594
182.9594
208.3594
233.759
7/32
.218750
5.5562
30.9562
56.3562
81.7562
107.1562
132.5562
157.9562
183.3562
208.7562
234.156
15/64
.234375
5.9531
31.3531
56.7531
82.1531
107.5531
132.9531
158.3531
183.7531
209.1531
234.553
1/4
.250000
6.3500
31.7500
57.1500
82.5500
107.9500
133.3500
158.7500
184.1500
209.5500
234.950
17/64
.265625
6.7469
32.1469
57.5469
82.9469
108.3469
133.7469
159.1469
184.5469
209.9469
235.347
9/32
.281250
7.1438
32.5438
57.9438
83.3438
108.7438
134.1438
159.5438
184.9438
210.3438
235.744
19/64
.296875
7.5406
32.9406
58.3406
83.7406
109.1406
134.5406
159.9406
185.3406
210.7406
236.141
5/16
.312500
7.9375
33.3375
58.7375
84.1375
109.5375
134.9375
160.3375
185.7375
211.1375
236.538
21/64
.328125
8.3344
33.7344
59.1344
84.5344
109.9344
135.3344
160.7344
186.1344
211.5344
236.934
11/32
.343750
8.7312
34.1312
59.5312
84.9312
110.3312
135.7312
161.1312
186.5312
211.9312
237.331
23/64
.359375
9.1281
34.5281
59.9281
85.3281
110.7281
136.1281
161.5281
186.9281
212.3281
237.728
3/8
.375000
9.5250
34.9250
60.3250
85.7250
111.1250
136.5250
161.9250
187.3250
212.7250
238.125
25/64
.390625
9.9219
35.3219
60.7219
86.1219
111.5219
136.9219
162.3219
187.7219
213.1219
238.522
13/32
.406250
10.3188
35.7188
61.1188
86.5188
111.9188
137.3188
162.7188
188.1188
213.5188
238.919
27/64
.421875
10.7156
36.1151
61.5156
86.9156
112.3156
137.7156
163.1156
188.5156
213.9156
239.316
7/16
.437500
11.1125
36.5125
61.9125
87.3125
112.7125
138.1125
163.5125
188.9125
214.3125
239.712
29/64
.453125
11.5094
36.9094
62.3094
87.7094
113.1094
138.5094
163.9094
189.3094
214.7094
240.109
15/32
.468750
11.9062
37.3062
62.7062
88.1062
113.5062
138.9062
164.3062
189.7062
215.1062
240.506
31/64
.484375
12.3031
37.7031
63.1031
88.5031
113.9031
139.3031
164.7031
190.1031
215.5031
240.903
1/2
.500000
12.7000
38.1000
63.5000
88.9000
114.3000
139.7000
165.1000
190.5000
215.9000
241.300
33/64
.515625
13.0969
38.4969
63.8969
89.2969
114.6969
140.0969
165.4969
190.8969
216.2969
241.697
17/32
.531250
13.4938
38.9839
64.2938
89.6938
115.0938
140.4938
165.8938
191.2938
216.6938
242.094
35/64
.546875
13.8906
39.2906
64.6906
90.0906
115.4906
140.8906
166.2906
191.6906
217.0906
242.491
9/16
.562500
14.2875
39.6875
65.0875
90.4875
115.8875
141.2875
166.6875
192.0875
217.04875
242.888
37/64
.578125
14.6844
40.0844
65.4844
90.8844
116.2844
141.6844
167.0844
192.4844
217.8844
243.284
19/32
.593750
15.0812
40.4812
65.8812
91.2812
116.6812
142.0812
167.4812
192.8812
218.2812
243.681
39/64
.609375
15.4781
40.8781
66.2781
91.6781
117.0781
142.4781
167.8781
193.2781
218.6781
244.078
5/8
.625000
15.8750
41.2750
66.6750
92.0750
117.4750
142.8750
168.2750
193.6750
219.0750
244.475
41/64
.640625
16.2719
41.6719
67.0719
92.4719
117.8719
143.2719
168.6719
194.0719
219.4719
244.872
21/32
.656250
16.6688
42.0688
67.4688
92.8688
118.2688
143.6688
169.0688
194.4688
219.8688
245.269
43/64
.671875
17.0656
42.4656
67.8656
93.2656
118.6656
144.0659
169.4656
194.8656
220.2656
245.666
11/16
.687500
17.4625
42.8625
68.2625
93.6625
119.0625
144.4625
169.8625
195.2625
220.6625
246.062
45/64
.703125
17.8594
43.2594
68.6594
94.0594
119.4594
144.8594
170.2594
195.6594
221.0594
246.459
23/32
.718750
18.2562
43.6562
69.0562
94.4562
119.8562
145.2562
170.6562
196.0562
221.4562
246.856
47/64
.734375
18.6531
44.0531
69.4531
94.8531
120.2531
145.6531
171.0531
196.4531
221.8531
247.253
3/4
.750000
19.0500
44.4500
69.8500
95.2500
120.6500
146.0500
171.4500
196.8500
222.2500
247.650
49/64
.765625
19.4469
14.8469
70.2469
95.6469
121.0469
146.4469
171.8469
197.2469
222.6469
248.047
25/32
.781250
19.8438
45.2438
70.6438
96.0438
121.4438
146.8438
172.2438
197.6438
223.0438
248.444
51/64
.796875
20.2406
45.6406
71.0406
96.4406
121.8406
147.2406
172.6406
198.0406
223.4405
248.841
13/16
.812500
20.6375
46.0375
71.4375
96.8375
122.2375
147.6375
173.0375
198.4375
223.8375
249.238
53/64
.828125
21.0344
46.4344
71.8344
97.2344
122.6344
148.0344
173.4344
198.8344
224.2344
249.634
27/32
.843750
21.4312
46.8312
72.2312
97.6312
123.0312
148.4312
173.8312
199.2312
224.6312
250.031
55/64
.859375
21.8281
47.2281
72.6281
98.0281
123.4281
148.8281
174.2281
199.6281
225.0281
250.428
7/8
.875000
22.2250
47.6250
73.0250
98.4250
123.8250
149.2250
174.6250
200.0250
225.4250
250.825
57/64
.890625
22.6219
48.0219
73.4219
98.8219
124.2219
149.6219
175.0219
200.4219
225.8219
251.222
29/32
.906250
23.0188
48.4188
73.8188
99.2188
124.6188
150.0188
175.4188
200.8188
226.2188
251.619
59/64
.921875
23.4156
48.8156
74.2156
99.6156
125.0156
150.4156
175.8156
201.2156
226.6156
252.016
15/16
.937500
23.8125
49.2125
74.6125
100.0125
125.4125
150.8125
176.2125
201.6125
227.0125
252.412
61/64
.953125
24.2094
49.6094
75.0094
100.4094
125.8094
151.2094
176.6094
202.0094
227.4094
252.809
31/32
.968759
24.6062
50.0062
75.4062
100.8062
126.2062
151.6062
177.0062
202.4062
227.8062
253.206
63/64
.984375
25.0031
50.4031
75.8031
101.2031
126.6031
152.0031
177.4031
202.8031
228.2031
253.603
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