Inches to Millimeter Conversions
0"
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
1/32"
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
25.3995
50.7990
76.1986
101.5980
126.9980
152.3970
177.7970
203.1960
228.5960
253.9950
1/32
0.7937
26.1932
51.5928
76.9923
102.3910
127.7910
153.1900
178.5900
203.9900
229.3890
254.7890
1/16
1.5874
26.9870
52.3865
77.7860
103.1850
128.5850
153.9840
179.3840
204.7830
230.1830
255.5820
3/32
2.3812
27.7807
53.1802
78.5798
103.9790
129.3780
154.7880
180.1770
205.5770
230.9770
256.3760
1/8
3.1749
28.5744
53.9740
79.3735
104.7730
130.1720
155.5720
180.9710
206.3700
231.7700
257.1700
5/32
3.9686
29.3682
54.7677
80.1672
105.5660
130.9660
156.3650
181.7650
207.1640
232.5640
257.9640
3/16
4.7624
30.1619
55.5614
80.9610
106.3600
131.7600
157.1590
182.5590
207.9580
233.3580
258.7570
7/32
5.5561
30.9556
56.3552
81.7547
107.1540
132.5530
157.9530
183.3520
208.7520
234.1520
259.5510
1/4
6.3498
31.7494
57.1489
82.5485
107.9480
133.3470
158.7470
184.1460
209.5460
234.9450
260.3450
9/32
7.1436
32.5431
57.9426
83.3422
108.7410
134.1410
159.5400
184.9400
210.3390
235.7390
261.1390
5/16
7.9373
33.3368
58.7364
84.1359
109.5350
134.9350
160.3350
185.7340
211.1330
236.5320
261.9320
11/32
8.7310
34.1306
59.5301
84.9297
110.3290
135.7280
161.1280
186.5270
211.9270
237.3260
262.7260
3/8
9.5248
34.9243
60.3239
85.7234
111.1220
136.5220
161.9220
187.3210
212.7210
238.1200
263.5200
13/32
10.3185
35.7180
61.1176
86.5171
111.9160
137.3160
162.7150
188.1150
213.5140
238.9140
264.3130
7/16
11.1122
36.5118
61.9113
87.3109
112.7100
138.1090
163.5090
188.9090
214.3080
239.7080
265.1070
15/32
11.9060
37.3055
62.7051
88.1046
113.5040
138.9030
164.3030
189.7020
215.1020
240.5010
265.9010
1/2
12.6997
38.0993
63.4988
88.8983
114.2970
139.6970
165.0970
190.4960
215.8960
241.2950
266.6950
17/32
13.4934
38.8930
64.2925
89.6921
115.0910
140.4910
165.8900
191.2900
216.6890
242.0890
267.4880
9/16
14.2872
39.6867
65.0863
90.4858
115.8850
141.2840
166.6840
192.0840
217.4830
242.8830
268.2820
19/32
15.0809
40.4805
65.8800
91.2795
116.6790
142.0780
167.4780
192.8770
218.2770
243.6760
269.0760
5/8
15.8747
41.2742
66.6737
92.0733
117.4720
142.8720
168.2710
193.6710
219.0710
244.4700
269.8700
21/32
16.6684
42.0679
67.4675
92.8670
118.2660
143.6660
169.0650
194.4650
219.8640
245.2630
270.6630
11/16
17.4621
42.8617
68.2612
93.6608
119.0600
144.4590
169.8590
195.2580
220.6580
246.0580
271.4570
23/32
18.2559
43.6554
69.0549
94.4545
119.8540
145.2530
170.6530
196.0520
221.4520
246.8510
272.2510
3/4
19.0496
44.4491
69.8487
95.2482
120.6470
146.0470
171.4460
196.8460
222.2450
247.6450
273.0450
25/32
19.8433
45.2429
70.6424
96.0419
121.4410
146.8410
172.2400
197.6400
223.0390
248.4390
273.8380
13/16
20.6371
46.0366
71.4362
96.8357
122.2350
147.6340
173.0340
198.4330
223.8830
249.2320
274.6320
27/32
21.4308
46.8303
72.2299
97.6294
123.0290
148.4280
173.8280
199.2270
224.6270
250.0260
275.4260
7/8
22.2245
47.6241
73.0236
98.4232
123.8220
149.2220
174.6210
200.0210
225.4200
250.8200
276.2200
29/32
23.0183
48.4178
73.8173
99.2169
124.6160
150.0160
175.4150
200.8150
226.2140
251.6140
277.0130
15/16
23.8120
49.2116
74.6111
100.0110
125.4100
150.8090
176.2090
201.6080
227.0080
252.4070
277.8070
31/32
24.6057
50.0053
75.4048
100.8040
126.2030
151.6030
177.0030
202.4020
227.8020
253.2010
278.6010
Updated as of July 6, 2010