### What is a Inch?

The **inch** (symbol: in or ″) is a unit of length in the British imperial and the United States customary systems of measurement. An inch in the metric system equals 2.54 cm, or 1/36 yard or 1/12 of a foot.

### What is a Millimeter?

The **Millimetre** (international spelling; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the metric system, equal to one-thousandth of a meter, which is the SI base unit of length. Therefore, there are one thousand millimeters in a meter and ten millimeters in a centimeter.

### How to Convert Inch to Millimeters?

To convert Inch to Millimeters, simply multiply the Inch value by 25.4.

The formula used to calculate Inch to Millimeters -

**d**_{(in)} = **d**_{(mm)} * 25.4

The distance *d* in Millimeters (mm) is equal to the distance *d* in Inches (in) multiplied by 25.4.

### How many Millimeters in a Inch

In simple terms, 1 in is equal to 25.4 mm.

The formula used is 1*25.4 = 25.4(mm)

### How many Inches in a Millimeter

1 Millimeter is equal to 0.03937007874 Inches. So we can also say that there are 0.03937007874 Inches in a Millimeter.

### Inch to Millimeters Conversion Table

Inch (in) | Millimeter (mm) |
---|---|

0.01 (in) | |

0.02 (in) | |

0.03 (in) | |

0.04 (in) | |

0.05 (in) | |

1 (in) | |

2 (in) | |

3 (in) | |

4 (in) | |

5 (in) | |

6 (in) | |

7 (in) | |

8 (in) | |

9 (in) | |

10 (in) | |

20 (in) | |

30 (in) | |

40 (in) | |

50 (in) | |

60 (in) | |

70 (in) | |

80 (in) | |

90 (in) | |

100 (in) | |

200 (in) | |

300 (in) | |

400 (in) | |

500 (in) | |

600 (in) | |

700 (in) | |

800 (in) | |

900 (in) | |

1000 (in) | |

5000 (in) | |

10000 (in) |