• Source: Centimetre

A centimetre or centimeter (US/Philippine spelling), with SI symbol cm, is a unit of length in the International System of Units (SI) equal to one hundredth of a metre, centi being the SI prefix for a factor of ⁠1/100⁠. Equivalently, there are 100 centimetres in 1 metre. 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; for instance, human height is commonly measured in centimetres. A centimetre is approximately the width of the fingernail of an average adult person.




Equivalence to other units of length



One millilitre is defined as one cubic centimetre, under the SI system of units.




Other uses


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

sometimes, to report the level of rainfall as measured by a rain gauge
in the CGS system, the centimetre is used to measure capacitance, where 1 cm of capacitance = 1.113×10−12 farads
in maps, centimetres are used to make conversions from map scale to real world scale (kilometres)
to represent second moment of areas (cm4)
as the inverse of the Kayser, a CGS unit, and thus a non-SI metric unit of wavenumber: 1 kayser = 1 wave per centimetre; or, more generally, (wavenumber in kaysers) = 1/(wavelength in centimetres). The SI unit of wavenumber is the inverse metre, m−1.




Unicode symbols


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

centimetre – U+339D ㎝ SQUARE CM
square centimetre – U+33A0 ㎠ SQUARE CM SQUARED
cubic centimetre – U+33A4 ㎤ SQUARE CM CUBED
These characters are each equal in size to one Chinese character and are typically used only with East Asian, fixed-width CJK fonts.




See also


Conversion of units
Orders of magnitude (length)
Reciprocal length




References






External links


CM to Inch Converter

Kata Kunci Pencarian:

• Sentimeter
• Sistem satuan CGS
• Muatan listrik partikel
• Satuan panjang
• Chinese Deep Space Network
• Centimetre
• Centimetre–gram–second system of units
• Cubic centimetre
• Centimetre or millimetre of water
• Kilogram-force per square centimetre
• Reciprocal length
• Square metre
• Gram per cubic centimetre
• Hydrogen line
• Super high frequency