Centimetre

From Wikipedia, the free encyclopedia - View original article

Centimetre
CarpentersRule.png
a carpenters' ruler with centimetre divisions
Unit information
Unit systemSI
Unit oflength
Symbolcm
Unit conversions
1 cm in...is equal to...
   SI   10 mm
   imperial & US system   ~0.3937 in
 
Jump to: navigation, search
Centimetre
CarpentersRule.png
a carpenters' ruler with centimetre divisions
Unit information
Unit systemSI
Unit oflength
Symbolcm
Unit conversions
1 cm in...is equal to...
   SI   10 mm
   imperial & US system   ~0.3937 in

A centimetre (international spelling as used by the International Bureau of Weights and Measures; symbol cm) or centimeter (American spelling) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1100.[1] The centimetre was the base unit of length in the now deprecated centimetre-gram-second (CGS) system of units.

Though for many physical quantities, SI prefixes for factors of 103—like milli- and kilo-—are often preferred by technicians, the centimetre remains a practical unit of length for many everyday measurements. A centimetre is approximately the width of the fingernail of an average adult person.

Equivalence to other units of length[edit]

1 centimetre= 10 millimetres
= 0.01 metre
0.393700787401575 inch[2]

One cubic centimetre is equal to 1 millilitre, under the current SI system of units.

Uses of centimetre[edit]

In addition to its use in the measurement of length, the centimetre is used:

Unicode symbols[edit]

For the purposes of compatibility with Chinese, Japanese and Korean (CJK) characters, Unicode has symbols for:[5]

They are mostly used only with East Asian fixed-width CJK fonts, because they are equal in size to one Chinese character.

See also[edit]

References[edit]