Full name: millimetre

Plural form: millimetres

Symbol: mm

Alternate spelling: millimeters

Category type: length

Scale factor: 0.001

megametre millimetre

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

Valid units must be of the length type. You can use this form to select from known units:

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.

mm to league [US statute] mm to klafter [Austria] mm to range mm to stride [Roman] mm to cuadra [Argentina] mm to lug mm to linear foot mm to mkono [Africa] mm to attometre mm to ligne [France]

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