## Formula for Millimeters to Inches and Inches to Millimeters

### How much is 1 inch in mm (inches to mm)

To convert inches to millimeter, multiply inches by 25.4

mm = inches * 25.4

For example, to convert 12 inches to mm, multiply 12 by 25.4

12 inches in mm = 12 * 25.4 = 304.8 mm

### How much is 1 mm in inches (mm to inches)

To convert millimeters to inches, divide millimeters by 25.4.

inch = mm / 25.4

For example, 10 millimeters in inches is equal to 10 / 25.4 = 0.3937 inches.

## Know more about Millimeter and Inches

- The millimeter is the base unit of length in the International System of Units (SI), while the inch is a unit of length in the imperial and customary units of measurement systems.
- One millimeter is equal to 0.03937 inches, and one inch is equal to 25.4 millimeters.
- Millimeters are used in most of the world to measure small objects, such as screws, nails, and electronic components.
- Inches are still commonly used in the United States and the United Kingdom to measure larger objects, such as lumber, furniture, and clothing.
- There are a few interesting points about the history of the millimeter and the inch. The millimeter was first defined in 1793, based on one ten-millionth of the distance from the North Pole to the equator.
- The inch, on the other hand, has a much longer history, dating back to the ancient Romans. The Roman inch was defined as the width of three barleycorns.
- Here are some other interesting facts about millimeters and inches:

- Millimeters and inches are both units of length, but they are used in different parts of the world and for different purposes.
- Millimeters are used in most of the world to measure small objects, such as screws, nails, electronic components, and the thickness of paper. They are also used to measure medical measurements, such as the size of tumors and the thickness of skin.
- Inches are still commonly used in the United States and the United Kingdom to measure larger objects, such as lumber, furniture, clothing, and the height and weight of people. They are also used in the automotive industry to measure tire sizes and engine displacement.
- Here are some examples of where millimeters and inches are used:

- Millimeters:

- The thickness of a sheet of paper
- The diameter of a screw
- The size of a computer chip
- The thickness of a human hair

- Inches:

- The height of a person
- The length of a piece of wood
- The width of a TV screen
- The diameter of a wheel
- The size of a shoe

## Millimeter to Inches (mm to inches) Conversion table

Millimeter (mm) | Inches (in) |
---|---|

1 mm | 0.039 inches |

2 mm | 0.079 inches |

3 mm | 0.118 inches |

4 mm | 0.157 inches |

5 mm | 0.197 inches |

6 mm | 0.236 inches |

7 mm | 0.276 inches |

8 mm | 0.315 inches |

9 mm | 0.354 inches |

10 mm | 0.394 inches |

12 mm | 0.472 inches |

15 mm | 0.591 inches |

16 mm | 0.63 inches |

17 mm | 0.669 inches |

18 mm | 0.709 inches |

20 mm | 0.787 inches |

22 mm | 0.866 inches |

25 mm | 0.984 inches |

28 mm | 1.102 inches |

29 mm | 1.142 inches |

30 mm | 1.181 inches |

31 mm | 1.22 inches |

32 mm | 1.26 inches |

33 mm | 1.299 inches |

34 mm | 1.339 inches |

35 mm | 1.378 inches |

36 mm | 1.417 inches |

37 mm | 1.457 inches |

38 mm | 1.496 inches |

39 mm | 1.535 inches |

40 mm | 1.575 inches |

41 mm | 1.614 inches |

42 mm | 1.654 inches |

43 mm | 1.693 inches |

44 mm | 1.732 inches |

45 mm | 1.772 inches |

46 mm | 1.811 inches |

47 mm | 1.85 inches |

48 mm | 1.89 inches |

49 mm | 1.929 inches |

50 mm | 1.969 inches |

53 mm | 2.087 inches |

55 mm | 2.165 inches |

57 mm | 2.244 inches |

60 mm | 2.362 inches |

64 mm | 2.52 inches |

65 mm | 2.559 inches |

70 mm | 2.756 inches |

75 mm | 2.953 inches |

80 mm | 3.15 inches |

85 mm | 3.346 inches |

90 mm | 3.543 inches |

100 mm | 3.937 inches |

104 mm | 4.094 inches |

105 mm | 4.134 inches |

110 mm | 4.331 inches |

120 mm | 4.724 inches |

125 mm | 4.921 inches |

128 mm | 5.039 inches |

130 mm | 5.118 inches |

140 mm | 5.512 inches |

150 mm | 5.906 inches |

155 mm | 6.102 inches |

160 mm | 6.299 inches |

175 mm | 6.89 inches |

180 mm | 7.087 inches |

200 mm | 7.874 inches |

220 mm | 8.661 inches |

235 mm | 9.252 inches |

250 mm | 9.843 inches |

280 mm | 11.024 inches |

300 mm | 11.811 inches |

320 mm | 12.598 inches |

330 mm | 12.992 inches |

400 mm | 15.748 inches |

600 mm | 23.622 inches |

650 mm | 25.591 inches |

700 mm | 27.559 inches |

800 mm | 31.496 inches |

900 mm | 35.433 inches |

1000 mm | 39.37 inches |

1100 mm | 43.307 inches |

1200 mm | 47.244 inches |

1400 mm | 55.118 inches |

1500 mm | 59.055 inches |

1600 mm | 62.992 inches |

1800 mm | 70.866 inches |

2000 mm | 78.74 inches |

2400 mm | 94.488 inches |

3000 mm | 118.11 inches |

5000 mm | 196.85 inches |

## Inches to Millimeter (inches to mm) Conversion table

Inches (in) | Millimeter (mm) |
---|---|

0.125 inches (1/16 in) | 3.175 mm |

0.25 inches (1/4 in) | 6.35 mm |

0.5 inches (1/2 in) | 12.7 mm |

0.75 inches (3/4 in) | 19.05 mm |

1 inch | 25.4 mm |

1.125 inches (1 1/16 in) | 28.575 mm |

1.25 inches (1 1/4 in) | 31.75 mm |

1.375 (1 3/8 in) | 34.925 mm |

1.5 inches (1 1/2 inch) | 38.1 mm |

1.75 inches (1 3/4 inch) | 44.45 mm |

2 inches | 50.8 mm |

2.5 inches (2 1/2 in) | 63.5 mm |

3 inches | 76.2 mm |

3.5 inches (3 1/2 in) | 88.9 mm |

3.75 inches (3 3/4 in) | 95.25 mm |

4 inches | 101.6 mm |

4.25 inches (4 1/4 in) | 107.95 mm |

4.5 inches (4 1/2 inch) | 114.3 mm |

4.75 inches (4 3/4 in) | 120.65 mm |

5 inches | 127 mm |

5.25 inches (5 1/4 in) | 133.35 mm |

5.5 inches (5 1/2 inch) | 139.7 mm |

5.75 inches (5 3/4 in) | 146.05 mm |

6 inches | 152.4 mm |

6.25 inches (6 1/4 in) | 158.75 mm |

6.5 inches (6 1/2 inch) | 165.1 mm |

6.75 inches (6 3/4 in) | 171.45 mm |

7 inches | 177.8 mm |

7.5 inches (7 1/2 inch) | 190.5 mm |

8 inches | 203.2 mm |

8.5 inches (8 1/2 inch) | 215.9 mm |

9 inches | 228.6 mm |

9.5 inches (9 1/2 inch) | 241.3 mm |

10 inches | 254 mm |

10.5 inches (10 1/2 inch) | 266.7 mm |

11 inches | 279.4 mm |

11.5 inches (11 1/2 inch) | 292.1 mm |

12 inches | 304.8 mm |

12.5 inches (12 1/2 inch) | 317.5 mm |

13 inches | 330.2 mm |

13.5 inches (13 1/2 inch) | 342.9 mm |

14 inches | 355.6 mm |

14.5 inches (14 1/2 inch) | 368.3 mm |

15 inches | 381 mm |

16 inches | 406.4 mm |

17 inches | 431.8 mm |

18 inches | 457.2 mm |

19 inches | 482.6 mm |

20 inches | 508 mm |

25 inches | 635 mm |

30 inches | 762 mm |

31 inches | 787.4 mm |

32 inches | 812.8 mm |

33 inches | 838.2 mm |

34 inches | 863.6 mm |

35 inches | 889 mm |

40 inches | 1016 mm |

50 inches | 1270 mm |

55 inches | 1397 mm |

58 inches | 1473.2 mm |

60 inches | 1524 mm |

75 inches | 1905 mm |

100 inches | 2540 mm |

125 inches | 3175 mm |

150 inches | 3810 mm |

200 inches | 5080 mm |

## Frequently Asked Questions on Converting Inches to mm and mm to Inches

It is a unit of length in imperial system

mm stands for millimeter. It is a unit of length in metric system. It is used to measure very small lengths.

Inch is bigger than mm. Inch is 25.4 times bigger than mm.

Metric system is mm, cm, meter . To convert inches to metric, you have to convert to cm, mm and meter 1 inch = 2.54 cm . 1 inch = 25.4 mm . 1 inch = 0.0254 m .

1 inch to mm is 25.4 mm . To convert mm to inch, multiply mm by 25.4 for example, 2.5 inches to mm is 63.5 mm. 12 inches to mm is 304.8 mm. 2 inches to mm is 50.8 mm. 38 inches in mm is 965.2 mm. 1.5 inches to mm is 38.1 mm. 3 inches to mm is 76.2 mm. 5 inches to mm is 127 mm. 58 inches to mm is 1473.2 mm. 4 inches to mm is 101.6 mm

1mm to inches is 0.039 in. Multiply inches by 0.039 to get mm. Example: 2.5 mm to inch is 0.1 in. 7 mm to inches is 0.276 in. 400mm to inches is 15.748 in. 4mm to inches is 0.157 in. 80mm to inches is 3.15 in. 45mm to inches is 1.772 in. 32mm to inches is 1.26 in. 22mm to inches is 0.866 in. 15 mm in inches is 0.591 in. 9mm in inches is 0.354 in.