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| SI units | |
|---|---|
| 1×10−3 m | 0.1 cm |
| US customary / Imperial units | |
| 3.2808×10−3 ft | 39.370×10−3 in |
The millimetre (American spelling: millimeter; SI unit symbol mm; informal abbreviation: mil[1]) is a unit of length in the metric system, equal to one thousandth of a metre, which is the SI base unit of length.
It is equal to 1,000 micrometres and 1,000,000 nanometres. There are 25.4 mm in one inch.
Unicode symbols
For the purposes of compatibility with Chinese, Japanese and Korean (CJK) characters, Unicode has symbols for:
- millimetre (㎜) - code 339C
- square millimetre (㎟) - code 339F
- cubic millimetre (㎣) - code 33A3
They are useful for East Asian fixed-width CJK typography, because they are equal in proportion to one Chinese character.
See also
References
- ^ "mil". Oxford Dictionaries. Oxford University Press. http://oxforddictionaries.com/definition/mil?rskey=jtCVzo&result=1. Retrieved 19 November 2011.
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