# Inches to Millimeters Converter

## What is inch?

The inch is a unit of length in the British imperial and the United States customary systems of measurement. It is 1/6 of a yard or 1/6 of a foot. The word inch is derived from the Roman uncia, meaning "twelfth", and is used to translate similar units in other measurement systems. Since the adoption of the international yard in the 1950s and 1960s, the inch has been defined by the metric system and is exactly 25.4mm.

## What is millimeter?

The base unit of length in the metric system is the millimetre, which is equal to one thousandth of a meter. There is one thousand millimetres in ametre. There is a tenth of a centimetre. One millimetre is equal to 1000 micrometres. Since an inch is officially defined as 25.4 millimetres, a millimetre is equal to 5127 of an inch.

## How to use the in mm calculator

Simple steps to use this converter:

- Use the top drop down menu under **Unit Converter** to choose the category of the type of calculator ranging from length, area, math, volume to voltage, power, and many more.

- Choose the desired unit to convert from in the **left black drop down bar** and type in the number to convert.

- Then choose the unit to convert to in the **right black drop down bar** and type in the number to convert.

## How to convert inches millimeters

It is easier to understand the conversion of **in** to **mm** by looking at a step by step example.

- Multiply by the conversion factor of 1 **in** = 25.4 **mm**.

- So 10 **in** in **mm** would be 10 in x 25.4 = 254.0 mm

## Popular FAQs

### What is 17mm in inches?

1/6 inch is 16mm. 17mm is close to 11/16 inch. Just over 11/16 inch is 18mm. 1/6 inch is 19mm.

### How many inches is 6 feet?

It is not possible to have more than 11 inches. 6 foot 0 inches is the same as 5 foot and 12 inches. It is possible in the lower rows. The word "meters" is used.

### How to convert in in mm calculator

**1828.8 mm**. Follow these steps to obtain the similar value:

Multiply 72 inches by the base conversion rate of 25.4 to get millimeters

72 in x 25.4 = 1828.8 mm

### How to convert yd mm in calculator

**0.1575 in**. Follow these steps to obtain the similar value:

Multiply 4 millimeters by the base conversion rate of 0.0394 to get inches

4 mm x 0.0394 = 0.1575 in

### How to convert yd mm in calculator

**0.5906 in**. Follow these steps to obtain the similar value:

Multiply 15 millimeters by the base conversion rate of 0.0394 to get inches

15 mm x 0.0394 = 0.5906 in

### How to convert yd mm in calculator

**0.0787 in**. Follow these steps to obtain the similar value:

Multiply 2 millimeters by the base conversion rate of 0.0394 to get inches

2 mm x 0.0394 = 0.0787 in

### How to convert in in mm calculator

**76.2 mm**. Follow these steps to obtain the similar value:

Multiply 3 inches by the base conversion rate of 25.4 to get millimeters

3 in x 25.4 = 76.2 mm

### How to convert in in mm calculator

**63.5 mm**. Follow these steps to obtain the similar value:

Multiply 2.5 inches by the base conversion rate of 25.4 to get millimeters

2.5 in x 25.4 = 63.5 mm

### How to convert in in mm calculator

**6.35 mm**. Follow these steps to obtain the similar value:

Multiply 1/4 inches by the base conversion rate of 25.4 to get millimeters

1/4 in x 25.4 = 6.35 mm

### How to convert in in mm calculator

**1.5875 mm**. Follow these steps to obtain the similar value:

Multiply 1/16 inches by the base conversion rate of 25.4 to get millimeters

1/16 in x 25.4 = 1.5875 mm

### How to convert in in mm calculator

**152.4 mm**. Follow these steps to obtain the similar value:

Multiply 6 inches by the base conversion rate of 25.4 to get millimeters

6 in x 25.4 = 152.4 mm

### How to convert in in mm calculator

**31.75 mm**. Follow these steps to obtain the similar value:

Multiply 1.25 inches by the base conversion rate of 25.4 to get millimeters

1.25 in x 25.4 = 31.75 mm

### How to convert in in mm calculator

**304.8 mm**. Follow these steps to obtain the similar value:

Multiply 12 inches by the base conversion rate of 25.4 to get millimeters

12 in x 25.4 = 304.8 mm

### How to convert in in mm calculator

**6.35 mm**. Follow these steps to obtain the similar value:

Multiply 1/4 inches by the base conversion rate of 25.4 to get millimeters

1/4 in x 25.4 = 6.35 mm

### How to convert in in mm calculator

**9.525 mm**. Follow these steps to obtain the similar value:

Multiply 3/8 inches by the base conversion rate of 25.4 to get millimeters

3/8 in x 25.4 = 9.525 mm

### How to convert in in mm calculator

**25.4 mm**. Follow these steps to obtain the similar value:

Multiply 1 inches by the base conversion rate of 25.4 to get millimeters

1 in x 25.4 = 25.4 mm

### How many millimeters Inches?

**25.4 mm**. You can calculate by:

1 inch is equivalent to 25.4 millimeters

1 in x 25.4 = 25.4 mm

### How many inches millimeter

**0.0394 in**. You can calculate by:

1 millimeter is equivalent to 0.0394 inches

1 mm x 0.0394 = 0.0394 in

## Examples of Inches to Millimeters rounded to 4th decimal place

Inches (in) | Millimeters (mm) |
---|---|

0.05 in | 1.27 mm |

0.5 in | 12.7 mm |

1 in | 25.4 mm |

2 in | 50.8 mm |

3 in | 76.2 mm |

4 in | 101.6 mm |

5 in | 127.0 mm |

6 in | 152.4 mm |

7 in | 177.8 mm |

8 in | 203.2 mm |

9 in | 228.6 mm |

10 in | 254.0 mm |

20 in | 508.0 mm |

30 in | 762.0 mm |

40 in | 1016.0 mm |

50 in | 1270.0 mm |

60 in | 1524.0 mm |

70 in | 1778.0 mm |

80 in | 2032.0 mm |

90 in | 2286.0 mm |

100 in | 2540.0 mm |

## Some of Inches to units in same category

Base Unit | To Unit | To Unit Full Name |
---|---|---|

1 in | 0.0 nMi | Nautical Miles |

1 in | 0.0 mi | Miles |

1 in | 0.014 fathom | Fathoms |

1 in | 0.083 ft | Feet |

1 in | 0.083 ft-us | US Survey Feet |

1 in | 0.028 yd | Yards |

1 in | 1.0 in | Inches |

1 in | 0.0 km | Kilometers |

1 in | 0.025 m | Meters |

1 in | 2.54 cm | Centimeters |

1 in | 25.4 mm | Millimeters |

1 in | 25399.999 μm | Micrometers |

1 in | 25399999.187 nm | Nanometers |