How many millimeters in 1 inch?
1 inch equals 25.4 millimeters
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To calculate a inch value to the corresponding value in millimeter, just multiply the quantity in inch by 25.4 (the conversion factor). Here is the formula:
Suppose you want to convert 1 inch into millimeters. Using the conversion formula above, you will get:
Value in millimeter = 1 × 25.4 = 25.4 millimeters
Definition of Inch
An inch is a unit of length or distance in a number of systems of measurement, including in the US Customary Units and British Imperial Units. One inch is defined as 1⁄12 of a foot and is therefore 1⁄36 of a yard. According to the modern definition, one inch is equal to 25.4 mm exactly.
Definition of Millimeter
A millimeter (mm) is a decimal fraction of the meter, The international standard unit of length, approximately equivalent to 39.37 inches.
This converter can help you to get answers to questions like:
 How many inches are in 1 millimeters?
 1 inches is equal to how many millimeters?
 How much is 1 inch in millimeters?
 How to convert inches to millimeters?
 What is the conversion factor to convert from inches to millimeters?
 How to transform inches in millimeters?
 What is the formula to convert from inches to millimeters? Among others.
Inches to millimeters conversion table
The table below contains pairs of values from inches to millimeters ranging from one to one hundred thousand.
Inches to millimeters table
0 to 1
Inches to millimeters 

0 in = 0 mm 
0.001 in = 0.0254 mm 
0.002 in = 0.0508 mm 
0.003 in = 0.0762 mm 
0.004 in = 0.1016 mm 
0.005 in = 0.127 mm 
0.006 in = 0.1524 mm 
0.007 in = 0.1778 mm 
0.008 in = 0.2032 mm 
0.009 in = 0.2286 mm 
0.01 in = 0.254 mm 
0.02 in = 0.508 mm 
0.03 in = 0.762 mm 
0.04 in = 1.016 mm 
0.05 in = 1.27 mm 
0.06 in = 1.524 mm 
0.07 in = 1.524 mm 
0.08 in = 2.032 mm 
0.09 in = 2.286 mm 
0.1 in = 2.54 mm 
^{1}/_{5} in = 5.08 mm 
0.3 in = 7.62 mm 
0.4 in = 10.16 mm 
^{1}/_{2} in = 12.7 mm 
0.6 in = 15.24 mm 
0.7 in = 17.78 mm 
0.8 in = 20.32 mm 
0.9 in = 22.86 mm 
1 in = 25.4 mm 
Inches to millimeters table
1 to 10000
Inches to millimeters 

1 in = 25.4 mm 
2 in = 50.8 mm 
3 in = 76.2 mm 
4 in = 101.6 mm 
5 in = 127 mm 
6 in = 152.4 mm 
7 in = 177.8 mm 
8 in = 203.2 mm 
9 in = 228.6 mm 
10 in = 254 mm 
20 in = 508 mm 
30 in = 762 mm 
40 in = 1016 mm 
50 in = 1270 mm 
60 in = 1524 mm 
70 in = 1778 mm 
80 in = 2032 mm 
90 in = 2286 mm 
100 in = 2540 mm 
200 in = 5080 mm 
300 in = 7620 mm 
400 in = 10160 mm 
500 in = 12700 mm 
600 in = 15240 mm 
700 in = 17780 mm 
800 in = 20320 mm 
900 in = 22860 mm 
1000 in = 25400 mm 
10000 in = 254000 mm 
Millimeters to inches table
0 to 100
Millimeters to inches 

0 mm = 0 in 
0.1 mm = 0.003937 in 
^{1}/_{5} mm = 0.007874 in 
0.3 mm = 0.01181 in 
0.4 mm = 0.01575 in 
^{1}/_{2} mm = 0.01969 in 
0.6 mm = 0.02362 in 
0.7 mm = 0.02756 in 
0.8 mm = 0.0315 in 
0.9 mm = 0.03543 in 
1 mm = 0.03937 in 
2 mm = 0.07874 in 
3 mm = 0.1181 in 
4 mm = 0.1575 in 
5 mm = 0.1969 in 
6 mm = 0.2362 in 
7 mm = 0.2362 in 
8 mm = 0.315 in 
9 mm = 0.3543 in 
10 mm = 0.3937 in 
20 mm = 0.7874 in 
30 mm = 1.181 in 
40 mm = 1.575 in 
50 mm = 1.969 in 
60 mm = 2.362 in 
70 mm = 2.756 in 
80 mm = 3.15 in 
90 mm = 3.543 in 
100 mm = 3.937 in 
Millimeters to inches table
100 to 1000000
Millimeters to inches 

100 mm = 3.937 in 
200 mm = 7.874 in 
300 mm = 11.81 in 
400 mm = 15.75 in 
500 mm = 19.69 in 
600 mm = 23.62 in 
700 mm = 27.56 in 
800 mm = 31.5 in 
900 mm = 35.43 in 
1000 mm = 39.37 in 
2000 mm = 78.74 in 
3000 mm = 118.1 in 
4000 mm = 157.5 in 
5000 mm = 196.9 in 
6000 mm = 236.2 in 
7000 mm = 275.6 in 
8000 mm = 315 in 
9000 mm = 354.3 in 
10000 mm = 393.7 in 
20000 mm = 787.4 in 
30000 mm = 1181 in 
40000 mm = 1575 in 
50000 mm = 1969 in 
60000 mm = 2362 in 
70000 mm = 2756 in 
80000 mm = 3150 in 
90000 mm = 3543 in 
100000 mm = 3937 in 
1000000 mm = 39370 in 
Inches to millimeters conversion table from 1 to 100
Inches to millimeters table
1 to 25
Inches to millimeters 

1 in = 25.4 mm 
2 in = 50.8 mm 
3 in = 76.2 mm 
4 in = 101.6 mm 
5 in = 127 mm 
6 in = 152.4 mm 
7 in = 177.8 mm 
8 in = 203.2 mm 
9 in = 228.6 mm 
10 in = 254 mm 
11 in = 279.4 mm 
12 in = 304.8 mm 
13 in = 330.2 mm 
14 in = 355.6 mm 
15 in = 381 mm 
16 in = 406.4 mm 
17 in = 431.8 mm 
18 in = 457.2 mm 
19 in = 482.6 mm 
20 in = 508 mm 
21 in = 533.4 mm 
22 in = 558.8 mm 
23 in = 584.2 mm 
24 in = 609.6 mm 
25 in = 635 mm 
Inches to millimeters table
26 to 50
Inches to millimeters 

26 in = 660.4 mm 
27 in = 685.8 mm 
28 in = 711.2 mm 
29 in = 736.6 mm 
30 in = 762 mm 
31 in = 787.4 mm 
32 in = 812.8 mm 
33 in = 838.2 mm 
34 in = 863.6 mm 
35 in = 889 mm 
36 in = 914.4 mm 
37 in = 939.8 mm 
38 in = 965.2 mm 
39 in = 990.6 mm 
40 in = 1016 mm 
41 in = 1041 mm 
42 in = 1067 mm 
43 in = 1092 mm 
44 in = 1118 mm 
45 in = 1143 mm 
46 in = 1168 mm 
47 in = 1194 mm 
48 in = 1219 mm 
49 in = 1245 mm 
50 in = 1270 mm 
Inches to millimeters table
51 to 75
Inches to millimeters 

51 in = 1295 mm 
52 in = 1321 mm 
53 in = 1346 mm 
54 in = 1372 mm 
55 in = 1397 mm 
56 in = 1422 mm 
57 in = 1448 mm 
58 in = 1473 mm 
59 in = 1499 mm 
60 in = 1524 mm 
61 in = 1549 mm 
62 in = 1575 mm 
63 in = 1600 mm 
64 in = 1626 mm 
65 in = 1651 mm 
66 in = 1676 mm 
67 in = 1702 mm 
68 in = 1727 mm 
69 in = 1753 mm 
70 in = 1778 mm 
71 in = 1803 mm 
72 in = 1829 mm 
73 in = 1854 mm 
74 in = 1880 mm 
75 in = 1905 mm 
Inches to millimeters table
76 to 100
Inches to millimeters 

76 in = 1930 mm 
77 in = 1956 mm 
78 in = 1981 mm 
79 in = 2007 mm 
80 in = 2032 mm 
81 in = 2057 mm 
82 in = 2083 mm 
83 in = 2108 mm 
84 in = 2134 mm 
85 in = 2159 mm 
86 in = 2184 mm 
87 in = 2210 mm 
88 in = 2235 mm 
89 in = 2261 mm 
80 in = 2286 mm 
91 in = 2311 mm 
92 in = 2337 mm 
93 in = 2362 mm 
94 in = 2388 mm 
95 in = 2413 mm 
96 in = 2438 mm 
97 in = 2464 mm 
98 in = 2489 mm 
99 in = 2515 mm 
100 in = 2540 mm 