Convert millimetre to inches
Millimetre
The millimetre (international spelling as used by the International Bureau of Weights and Measures; SI unit symbol mm) or millimetre (American spelling) is a unit of length in the metric system, equal to one thousandth of a metre, which is the SI base unit of length. Therefore, there are one thousand millimetres in a metre. There are ten millimetres in a centimetre.
Inch
The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement. It is equal to 1/36 yard or 1/12 of a foot. Derived from the Roman uncia ("twelfth"), the word inch is also sometimes used to translate similar units in other measurement systems, usually understood as deriving from the width of the human thumb.
Standards for the exact length of an inch have varied in the past, but since the adoption of the international yard during the 1950s and 1960s it has been based on the metric system and defined as exactly 25.4 mm.
Millimetre to Inch conversion table
| Millimetre | Inch | Inch | Millimetre |
|---|---|---|---|
| 1 | 0.0393701 | 1 | 25.4 |
| 2 | 0.0787402 | 2 | 50.8 |
| 3 | 0.11811 | 3 | 76.2 |
| 5 | 0.19685 | 5 | 127 |
| 10 | 0.393701 | 10 | 254 |
| 20 | 0.787402 | 20 | 508 |
| 25 | 0.984252 | 25 | 635 |
| 50 | 1.9685 | 50 | 1270 |
| 100 | 3.93701 | 100 | 2540 |
| 250 | 9.84252 | 250 | 6350 |
| 500 | 19.685 | 500 | 12700 |
| 1000 | 39.3701 | 1000 | 25400 |
How to convert Millimetre to Inch
1 mm = 0.0393701 in. To convert any value, multiply it by 0.0393701. For example, 25 mm = 0.984252 in.
Frequently asked questions
- How many in are there in one mm?
- One mm is equal to 0.0393701 in.
- How do you convert Millimetre to Inch?
- Multiply the value in Millimetre by 0.0393701 to get the result in Inch.
- How much is 25 mm in in?
- 25 mm is equal to 0.984252 in.
- How do you convert Inch back to Millimetre?
- Divide by the same factor: multiply the value in Inch by 25.4 to get Millimetre.