Convert Inches to Millimeters

How many millimeters are in an inch? Easy in to mm conversion.
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1 Inch =
25.4 Millimeters
exact result
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Inches
An inch is a unit of length equal to exactly 2.54 centimeters. There are 12 inches in a foot, and 36 inches in a yard.
Abbreviation: in
Millimeters
A millimeter, or millimetre, is a unit of length equal to one thousandth of a meter.
Abbreviation: mm
Inches to Millimeters Conversion Table
results may be rounded
in mm
0.0001 0.00254
0.0002 0.00508
0.0003 0.00762
0.0004 0.01016
0.0005 0.0127
0.0006 0.01524
0.0007 0.01778
0.0008 0.02032
0.0009 0.02286
0.001 0.0254
0.002 0.0508
0.003 0.0762
0.004 0.1016
0.005 0.127
0.006 0.1524
0.007 0.1778
0.008 0.2032
0.009 0.2286
0.01 0.254
0.02 0.508
0.03 0.762
0.04 1.016
0.05 1.27
0.06 1.524
0.07 1.778
0.08 2.032
0.09 2.286
0.1 2.54
0.2 5.08
0.3 7.62
0.4 10.16
0.5 12.7
0.6 15.24
0.7 17.78
0.8 20.32
0.9 22.86
1 25.4
2 50.8
3 76.2
4 101.6
5 127
6 152.4
7 177.8
8 203.2
9 228.6
10 254
11 279.4
12 304.8
13 330.2
14 355.6
15 381
16 406.4
17 431.8
18 457.2
19 482.6
20 508
21 533.4
22 558.8
23 584.2
24 609.6
25 635
26 660.4
27 685.8
28 711.2
29 736.6
30 762
31 787.4
32 812.8
33 838.2
34 863.6
35 889
36 914.4
37 939.8
38 965.2
39 990.6
40 1,016
41 1,041.4
42 1,066.8
43 1,092.2
44 1,117.6
45 1,143
46 1,168.4
47 1,193.8
48 1,219.2
49 1,244.6
50 1,270
51 1,295.4
52 1,320.8
53 1,346.2
54 1,371.6
55 1,397
56 1,422.4
57 1,447.8
58 1,473.2
59 1,498.6
60 1,524
61 1,549.4
62 1,574.8
63 1,600.2
64 1,625.6
65 1,651
66 1,676.4
67 1,701.8
68 1,727.2
69 1,752.6
70 1,778
71 1,803.4
72 1,828.8
73 1,854.2
74 1,879.6
75 1,905
76 1,930.4
77 1,955.8
78 1,981.2
79 2,006.6
80 2,032
81 2,057.4
82 2,082.8
83 2,108.2
84 2,133.6
85 2,159
86 2,184.4
87 2,209.8
88 2,235.2
89 2,260.6
90 2,286
91 2,311.4
92 2,336.8
93 2,362.2
94 2,387.6
95 2,413
96 2,438.4
97 2,463.8
98 2,489.2
99 2,514.6
100 2,540
101 2,565.4
102 2,590.8
103 2,616.2
104 2,641.6
105 2,667
106 2,692.4
107 2,717.8
108 2,743.2
109 2,768.6
110 2,794
111 2,819.4
112 2,844.8
113 2,870.2
114 2,895.6
115 2,921
116 2,946.4
117 2,971.8
118 2,997.2
119 3,022.6
120 3,048
121 3,073.4
122 3,098.8
123 3,124.2
124 3,149.6
125 3,175
126 3,200.4
127 3,225.8
128 3,251.2
129 3,276.6
130 3,302
131 3,327.4
132 3,352.8
133 3,378.2
134 3,403.6
135 3,429
136 3,454.4
137 3,479.8
138 3,505.2
139 3,530.6
140 3,556
141 3,581.4
142 3,606.8
143 3,632.2
144 3,657.6
145 3,683
146 3,708.4
147 3,733.8
148 3,759.2
149 3,784.6
150 3,810
151 3,835.4
152 3,860.8
153 3,886.2
154 3,911.6
155 3,937
156 3,962.4
157 3,987.8
158 4,013.2
159 4,038.6
160 4,064
161 4,089.4
162 4,114.8
163 4,140.2
164 4,165.6
165 4,191
166 4,216.4
167 4,241.8
168 4,267.2
169 4,292.6
170 4,318
171 4,343.4
172 4,368.8
173 4,394.2
174 4,419.6
175 4,445
176 4,470.4
177 4,495.8
in mm
178 4,521.2
179 4,546.6
180 4,572
181 4,597.4
182 4,622.8
183 4,648.2
184 4,673.6
185 4,699
186 4,724.4
187 4,749.8
188 4,775.2
189 4,800.6
190 4,826
191 4,851.4
192 4,876.8
193 4,902.2
194 4,927.6
195 4,953
196 4,978.4
197 5,003.8
198 5,029.2
199 5,054.6
200 5,080
201 5,105.4
202 5,130.8
203 5,156.2
204 5,181.6
205 5,207
206 5,232.4
207 5,257.8
208 5,283.2
209 5,308.6
210 5,334
211 5,359.4
212 5,384.8
213 5,410.2
214 5,435.6
215 5,461
216 5,486.4
217 5,511.8
218 5,537.2
219 5,562.6
220 5,588
221 5,613.4
222 5,638.8
223 5,664.2
224 5,689.6
225 5,715
226 5,740.4
227 5,765.8
228 5,791.2
229 5,816.6
230 5,842
231 5,867.4
232 5,892.8
233 5,918.2
234 5,943.6
235 5,969
236 5,994.4
237 6,019.8
238 6,045.2
239 6,070.6
240 6,096
241 6,121.4
242 6,146.8
243 6,172.2
244 6,197.6
245 6,223
246 6,248.4
247 6,273.8
248 6,299.2
249 6,324.6
250 6,350
251 6,375.4
252 6,400.8
253 6,426.2
254 6,451.6
255 6,477
256 6,502.4
257 6,527.8
258 6,553.2
259 6,578.6
260 6,604
261 6,629.4
262 6,654.8
263 6,680.2
264 6,705.6
265 6,731
266 6,756.4
267 6,781.8
268 6,807.2
269 6,832.6
270 6,858
271 6,883.4
272 6,908.8
273 6,934.2
274 6,959.6
275 6,985
276 7,010.4
277 7,035.8
278 7,061.2
279 7,086.6
280 7,112
281 7,137.4
282 7,162.8
283 7,188.2
284 7,213.6
285 7,239
286 7,264.4
287 7,289.8
288 7,315.2
289 7,340.6
290 7,366
291 7,391.4
292 7,416.8
293 7,442.2
294 7,467.6
295 7,493
296 7,518.4
297 7,543.8
298 7,569.2
299 7,594.6
300 7,620
305 7,747
310 7,874
315 8,001
320 8,128
325 8,255
330 8,382
335 8,509
340 8,636
345 8,763
350 8,890
355 9,017
360 9,144
365 9,271
370 9,398
375 9,525
380 9,652
385 9,779
390 9,906
395 10,033
400 10,160
405 10,287
410 10,414
415 10,541
420 10,668
425 10,795
430 10,922
435 11,049
440 11,176
445 11,303
450 11,430
455 11,557
460 11,684
465 11,811
470 11,938
475 12,065
480 12,192
485 12,319
490 12,446
495 12,573
500 12,700
505 12,827
510 12,954
515 13,081
520 13,208
525 13,335
530 13,462
535 13,589
540 13,716
545 13,843
550 13,970
555 14,097
560 14,224
565 14,351
570 14,478
575 14,605
580 14,732
585 14,859
590 14,986
595 15,113
600 15,240
605 15,367
610 15,494
615 15,621
620 15,748
625 15,875
630 16,002
635 16,129
640 16,256
645 16,383
650 16,510
655 16,637
660 16,764
665 16,891
670 17,018
675 17,145
680 17,272
685 17,399
690 17,526
695 17,653
700 17,780
705 17,907
710 18,034
715 18,161
720 18,288
725 18,415
730 18,542
735 18,669
740 18,796
745 18,923
750 19,050
in mm
755 19,177
760 19,304
765 19,431
770 19,558
775 19,685
780 19,812
785 19,939
790 20,066
795 20,193
800 20,320
805 20,447
810 20,574
815 20,701
820 20,828
825 20,955
830 21,082
835 21,209
840 21,336
845 21,463
850 21,590
855 21,717
860 21,844
865 21,971
870 22,098
875 22,225
880 22,352
885 22,479
890 22,606
895 22,733
900 22,860
905 22,987
910 23,114
915 23,241
920 23,368
925 23,495
930 23,622
935 23,749
940 23,876
945 24,003
950 24,130
955 24,257
960 24,384
965 24,511
970 24,638
975 24,765
980 24,892
985 25,019
990 25,146
995 25,273
1,000 25,400
1,100 27,940
1,200 30,480
1,300 33,020
1,400 35,560
1,500 38,100
1,600 40,640
1,700 43,180
1,800 45,720
1,900 48,260
2,000 50,800
2,100 53,340
2,200 55,880
2,300 58,420
2,400 60,960
2,500 63,500
2,600 66,040
2,700 68,580
2,800 71,120
2,900 73,660
3,000 76,200
3,100 78,740
3,200 81,280
3,300 83,820
3,400 86,360
3,500 88,900
3,600 91,440
3,700 93,980
3,800 96,520
3,900 99,060
4,000 101,600
4,100 104,140
4,200 106,680
4,300 109,220
4,400 111,760
4,500 114,300
4,600 116,840
4,700 119,380
4,800 121,920
4,900 124,460
5,000 127,000
5,100 129,540
5,200 132,080
5,300 134,620
5,400 137,160
5,500 139,700
5,600 142,240
5,700 144,780
5,800 147,320
5,900 149,860
6,000 152,400
6,100 154,940
6,200 157,480
6,300 160,020
6,400 162,560
6,500 165,100
6,600 167,640
6,700 170,180
6,800 172,720
6,900 175,260
7,000 177,800
7,100 180,340
7,200 182,880
7,300 185,420
7,400 187,960
7,500 190,500
7,600 193,040
7,700 195,580
7,800 198,120
7,900 200,660
8,000 203,200
8,100 205,740
8,200 208,280
8,300 210,820
8,400 213,360
8,500 215,900
8,600 218,440
8,700 220,980
8,800 223,520
8,900 226,060
9,000 228,600
9,100 231,140
9,200 233,680
9,300 236,220
9,400 238,760
9,500 241,300
9,600 243,840
9,700 246,380
9,800 248,920
9,900 251,460
10,000 254,000
1 / 2 12.7
3 / 2 38.1
1 / 3 8.4667
2 / 3 16.933
4 / 3 33.867
1 / 4 6.35
2 / 4 12.7
3 / 4 19.05
5 / 4 31.75
1 / 5 5.08
2 / 5 10.16
3 / 5 15.24
4 / 5 20.32
6 / 5 30.48
1 / 6 4.2333
2 / 6 8.4667
3 / 6 12.7
4 / 6 16.933
5 / 6 21.167
1 / 8 3.175
2 / 8 6.35
3 / 8 9.525
4 / 8 12.7
5 / 8 15.875
6 / 8 19.05
7 / 8 22.225
9 / 8 28.575
1 / 9 2.8222
2 / 9 5.6444
3 / 9 8.4667
4 / 9 11.289
5 / 9 14.111
6 / 9 16.933
7 / 9 19.756
8 / 9 22.578
10 / 9 28.222
1 / 10 2.54
2 / 10 5.08
3 / 10 7.62
4 / 10 10.16
5 / 10 12.7
6 / 10 15.24
7 / 10 17.78
8 / 10 20.32
9 / 10 22.86
1 / 12 2.1167
2 / 12 4.2333
3 / 12 6.35
4 / 12 8.4667
5 / 12 10.583
6 / 12 12.7
7 / 12 14.817
8 / 12 16.933
9 / 12 19.05
10 / 12 21.167
11 / 12 23.283
1 / 16 1.5875
2 / 16 3.175
3 / 16 4.7625
4 / 16 6.35
5 / 16 7.9375
6 / 16 9.525
7 / 16 11.113
8 / 16 12.7
9 / 16 14.288
10 / 16 15.875
11 / 16 17.463
12 / 16 19.05
13 / 16 20.638
14 / 16 22.225
15 / 16 23.813
1 / 32 0.79375
1 / 64 0.39688
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