Convert Inches to Millimeters

Formula: 1 inch = 25.4 mm

Inches (in)

in

=

Millimeters (mm)

25.4mm

← Back to Ruler

Quick Lookup Table

Inches (in)	Millimeters (mm)
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	1016
41	1041.4
42	1066.8
43	1092.2
44	1117.6
45	1143
46	1168.4
47	1193.8
48	1219.2
49	1244.6
50	1270
51	1295.4
52	1320.8
53	1346.2
54	1371.6
55	1397
56	1422.4
57	1447.8
58	1473.2
59	1498.6
60	1524
61	1549.4
62	1574.8
63	1600.2
64	1625.6
65	1651
66	1676.4
67	1701.8
68	1727.2
69	1752.6
70	1778
71	1803.4
72	1828.8
73	1854.2
74	1879.6
75	1905
76	1930.4
77	1955.8
78	1981.2
79	2006.6
80	2032
81	2057.4
82	2082.8
83	2108.2
84	2133.6
85	2159
86	2184.4
87	2209.8
88	2235.2
89	2260.6
90	2286
91	2311.4
92	2336.8
93	2362.2
94	2387.6
95	2413
96	2438.4
97	2463.8
98	2489.2
99	2514.6
100	2540