Millimeter to Centimeter Conversion Result

Millimeter: is a unit of length equal to one thousandth of a meter.

International spelling - millimeter.
American spelling - millimetre.
SI symbol (abbreviation) - mm.
In 1 meter there are one thousand millimetres. In 1 centimeter there are ten millimetres. One millimetre is also equal to 1000 micrometers.

Interesting facts:
  • The word millimeter consists of the latin word “mille”, that means “one thousand”, and the word “meter”
  • Millimeter is used to measure some very small objects when measurement should be more precise than cm
  • On a metric ruler, each individual line represents a millimeter
  • A thickness of a credit card is approximately 1 milllimeter


Centimeter: is a unit of measure in the International System of Units (SI). It is a basic unit of length in the metric system.

International spelling - centimeter.
American spelling - centimetre.
SI symbol (abbreviation) - cm
Equivalent to one-hundredth (1/100) of a meter and ten millimeters.

Interesting facts:
  • The word “centimeter” consists of the Latin word “centum”, that means “hundred”, and the French word “mètre”
  • Cm defines the distance that light travels in a vacuum in a 1/299,792,458 seconds
  • Cm is close to the fingernail length
  • Cm may be used to measure how much rain or snow has fallen
  • Cm can be used to measure people height
  • The numbers on the ruler represent centimeters (cm)
  • Cm is a radius of a US penny