# Convert Millimeters to Inches

## Learn How to Convert Millimeters to Inches Using our Conversion Formula

Converting a millimeter length measurement to an inch measurement involves multiplying your length by the conversion ratio to find the result. A millimeter is equal to 0.03937 inches, so to convert simply multiply by 0.03937.

For example, 5mm = (5 × 0.03937) = 0.19685".

Our inch fraction calculator can add millimeters and inches together and it also automatically converts the results to both imperial and metric values.

Millimeters and inches are both units used to measure length. Learn more about length and
find more length measurement conversion calculators.
A millimeter is a metric measurement and can be abbreviated as *mm*, for example 1mm.
An inch is an imperial measurement and can be abbreviated as *in*, for example 1in.
Learn more about the metric system, including the common unit prefixes and how to convert between metric units.

Millimeter is spelled *millimetre* internationally,
and it is equal in length to .1 centimeters, 1000 micrometers, or ^{5}/_{127} inch. They are represented by the
smallest ticks on most metric rulers. To get a reference point of the size,
the thickness of a dime is 1.35mm.

The actual length of an inch has varied becuase of variances of the length of a foot. Throughout history it has
been equal to ^{1}/_{12} - ^{1}/_{16} of a foot, but there are now exactly 12 inches in a foot. In 1959
the world agreed to the exact length of the national yard, .9144 meters. As such a foot is equal to .3048 meters
and an inch is equal to 2.54 centimeters.

The standard ruler has 12", and metric combinations have 30cm. Inches are also often measured using tape measures which commonly come in lengths from 6' - 35'. Other types of measuring devices include scales, calipers, measuring wheels, micrometers, yardsticks, and even lasers.

We recommend using a ruler or tape measure for measuring length, which can be found at a local retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you get the correct type for your needs. If you need a ruler you can also download and print our free printable rulers which include both imperial and metric measurements.

## More Length Conversions

- Convert to Miles Length
- 1mm is equal to 6.2137E-7 miles
- Convert to Yards Length
- 1mm is equal to 0.001094 yards
- Convert to Feet Length
- 1mm is equal to 0.003281 feet
- Convert to Kilometers Length
- 1mm is equal to 1.0E-6 kilometers
- Convert to Meters Length
- 1mm is equal to 0.001 meters
- Convert to Centimeters Length
- 1mm is equal to 0.1 centimeters
- Convert to Micrometers Length
- 1mm is equal to 1,000 micrometers
- Convert to Nanometers Length
- 1mm is equal to 1,000,000 nanometers

## Millimeter Measurements and Equivalent Inch Conversions

Millimeters | Inches | Millimeters | Inches | Millimeters | Inches |
---|---|---|---|---|---|

1 | 0.03937" | 21 | 0.826772" | 41 | 1.6142" |

2 | 0.07874" | 22 | 0.866142" | 42 | 1.6535" |

3 | 0.11811" | 23 | 0.905512" | 43 | 1.6929" |

4 | 0.15748" | 24 | 0.944882" | 44 | 1.7323" |

5 | 0.19685" | 25 | 0.984252" | 45 | 1.7717" |

6 | 0.23622" | 26 | 1.0236" | 46 | 1.811" |

7 | 0.275591" | 27 | 1.063" | 47 | 1.8504" |

8 | 0.314961" | 28 | 1.1024" | 48 | 1.8898" |

9 | 0.354331" | 29 | 1.1417" | 49 | 1.9291" |

10 | 0.393701" | 30 | 1.1811" | 50 | 1.9685" |

11 | 0.433071" | 31 | 1.2205" | 51 | 2.0079" |

12 | 0.472441" | 32 | 1.2598" | 52 | 2.0472" |

13 | 0.511811" | 33 | 1.2992" | 53 | 2.0866" |

14 | 0.551181" | 34 | 1.3386" | 54 | 2.126" |

15 | 0.590551" | 35 | 1.378" | 55 | 2.1654" |

16 | 0.629921" | 36 | 1.4173" | 56 | 2.2047" |

17 | 0.669291" | 37 | 1.4567" | 57 | 2.2441" |

18 | 0.708661" | 38 | 1.4961" | 58 | 2.2835" |

19 | 0.748031" | 39 | 1.5354" | 59 | 2.3228" |

20 | 0.787402" | 40 | 1.5748" | 60 | 2.3622" |