Inch to Micrometer Conversion Chart

This chart converts Inch (in) to Micrometer (μm) using the factor 25,400. One in equals 25,400 μm; one μm equals 0.000039370079 in.

μm = in × 25400

in	μm
1	25,400
2	50,800
3	76,200
4	101,600
5	127,000
6	152,400
7	177,800
8	203,200
9	228,600
10	254,000
11	279,400
12	304,800
13	330,200
14	355,600
15	381,000
16	406,400
17	431,800
18	457,200
19	482,600
20	508,000
21	533,400
22	558,800
23	584,200
24	609,600
25	635,000
26	660,400
27	685,800
28	711,200
29	736,600
30	762,000
31	787,400
32	812,800
33	838,200
34	863,600
35	889,000
36	914,400
37	939,800
38	965,200
39	990,600
40	1,016,000
41	1,041,400
42	1,066,800
43	1,092,200
44	1,117,600
45	1,143,000
46	1,168,400
47	1,193,800
48	1,219,200
49	1,244,600
50	1,270,000

in	μm
51	1,295,400
52	1,320,800
53	1,346,200
54	1,371,600
55	1,397,000
56	1,422,400
57	1,447,800
58	1,473,200
59	1,498,600
60	1,524,000
61	1,549,400
62	1,574,800
63	1,600,200
64	1,625,600
65	1,651,000
66	1,676,400
67	1,701,800
68	1,727,200
69	1,752,600
70	1,778,000
71	1,803,400
72	1,828,800
73	1,854,200
74	1,879,600
75	1,905,000
76	1,930,400
77	1,955,800
78	1,981,200
79	2,006,600
80	2,032,000
81	2,057,400
82	2,082,800
83	2,108,200
84	2,133,600
85	2,159,000
86	2,184,400
87	2,209,800
88	2,235,200
89	2,260,600
90	2,286,000
91	2,311,400
92	2,336,800
93	2,362,200
94	2,387,600
95	2,413,000
96	2,438,400
97	2,463,800
98	2,489,200
99	2,514,600
100	2,540,000

How to use this chart

Find the in value in the left column and read its μm equivalent on the right. Every row uses the same conversion factor, so the printable table is suitable for quick reference without recalculating each value.

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