›› Measurement unit: millimeter

Full name: millimetre

Plural form: millimetres

Symbol: mm

Alternate spelling: millimeters

Category type: length

Scale factor: 0.001


›› SI unit: metre

The SI base unit for length is the metre.
1 metre is equal to 1000 millimeter.


›› Convert millimeter to another unit

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›› Definition: Millimeter

A millimetre (American spelling: millimeter, symbol mm) is one thousandth of a metre, which is the International System of Units (SI) base unit of length. The millimetre is part of a metric system. A corresponding unit of area is the square millimetre and a corresponding unit of volume is the cubic millimetre.


›› Sample conversions: millimeter

millimeter to milliare [Rome]
millimeter to bicron
millimeter to furlong [international]
millimeter to foot [pre-1963 Canada]
millimeter to click [U.S. military]
millimeter to arshin [iraq]
millimeter to kiloparsec
millimeter to faden [Switzerland]
millimeter to metro
millimeter to sagene