›› Measurement unit: mm

Full name: millimetre

Plural form: millimetres

Symbol: mm

Alternate spelling: millimeters

Category type: length

Scale factor: 0.001

›› Similar units


›› SI unit: metre

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

›› Convert mm to another unit

Convert mm to  

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

Convert mm to  

I'm feeling lucky, show me some random units

›› 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: mm

mm to linear foot
mm to Scots mile
mm to legua [Texas]
mm to light second
mm to sadzhen
mm to dekametre
mm to millimicron
mm to mile [Britain, ancient]
mm to vara [Spanish]
mm to military pace [double time]