›› Measurement unit: mm

Full name: millimetre

Plural form: millimeters

Symbol: mm

Alternate spelling: millimetres

Category type: length

Scale factor: 0.001

›› Similar units

megametre
millimetre

›› SI unit: meter

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

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 klick
mm to femtometre
mm to micron
mm to fall [Scotland]
mm to city block [South, West U.S.]
mm to legua
mm to legua [Spanish, post-1568]
mm to dra [Russia]
mm to inch
mm to legoa

›› Common misspellings of mm

mms

Save this page

Weight loss info
Lose 9 lbs in 11 days. Low fat and low carb diets don't work. Learn about calorie shifting and get 50% off the online diet generator.

Support this site
If this page was helpful, please donate a small amount or advertise on the site. If you are a regular visitor, you might prefer to remove most ads. You can also contact us if you have any comments or suggestions.