Are you confused about the differences between inches and millimeters? Are you trying to convert from one measurement to another but don’t know where to start?

If so, this blog post is for you. **Math Prof**‘ll walk through exactly how many millimeters are in an inch, show you a few simple conversion calculations, and answer some of your most common questions surrounding the **inch-to-mm** conversion process. Let’s dive right into the details!

## Convert inch to mm

Inch to mm formula: 1 inch / 0.03937007874 = 25.4 mm

### Inch to mm Conversion table / chart

inch | mm |

0.1 | 2.5400000000102 |

0.2 | 5.0800000000203 |

0.3 | 7.6200000000305 |

0.4 | 10.160000000041 |

0.5 | 12.700000000051 |

0.6 | 15.240000000061 |

0.7 | 17.780000000071 |

0.8 | 20.320000000081 |

0.9 | 22.860000000091 |

1 | 25.400000000102 |

1.1 | 27.940000000112 |

1.2 | 30.480000000122 |

1.3 | 33.020000000132 |

1.4 | 35.560000000142 |

1.5 | 38.100000000152 |

1.6 | 40.640000000163 |

1.7 | 43.180000000173 |

1.8 | 45.720000000183 |

1.9 | 48.260000000193 |

## Inch

### Definition

The inch is a unit of measurement in the Imperial and United States customary systems of measurement. It is equal to 1/12 of a foot or 1/36 of a yard.

### Usage

The inch is most commonly used in the engineering and construction trades as a unit of linear measure. It is also used to measure objects such as paper thickness, rainfall amounts, and various other items.

Now, let’s have a look at **millimeter**.

## Millimeter (mm)

### Definition

The millimeter is a unit of measurement in the metric system. It is equal to one thousandth of a meter, or 0.001 meter (m).

### Usage

The millimeter is commonly used in engineering, manufacturing, and science. It is often used to measure small distances, such as the thickness of a sheet of paper or metal, the dimensions of a part or component, and other items. Additionally, it is often used to measure rainfall amounts and other forms of liquid measurement.

## The distinction between an inch and a millimeter

The inch is part of the Imperial and **United States **customary systems, while the millimeter is part of the metric system. There are 25.4 millimeters in 1 inch and 0.0393701 inches in 1 millimeter, making it a simple conversion to make when converting between these two units of measurement.

## F.A.Q. inch to mm

### What is 1 inch equal to in MM?

1 inch is equal to 25.4 millimeters (mm).

### How do you convert inches to millimeters in metric?

To convert inches to mm, multiply the inch value by 25.4.

### What is a 5 by 7 in MM?

A 5 by 7 in. (MM is 127 millimeters (mm) by 177.8 millimeters (mm).

### Is 40 mm 2 inches?

No, 40 millimeters (mm) is not equal to 2 inches.

### Conclusion

The converter on our website is a quick and easy way to make sure you’re getting the right measurements for your needs. If you need more information like this, be sure to visit **howtoconvert.net** again soon. We update our content regularly to ensure that you have the most accurate information available. Thanks for reading!