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A centimetre (American spelling: centimeter, symbol cm) is a unit of length in the metric system, equal to one hundredth of a metre, which is the current SI base unit of length. It can be written as 10×10 m (engineering notation) or (scientific E notation) — meaning or respectively. The centimetre is the base unit in the now deprecated centimetre-gram-second system of units.
Though for many physical properties, SI prefixes for factors of 10<sup>3</sup> 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 adult person.
nanometre <<< micrometre <<< millimetre < centimetre < decimetre < metre < decametre < hectometre < kilometre
1 centimetre is equal to:
1 cubic centimetre is equal to 1 millilitre, under the current SI system of units.
In addition to its use in the measurement of length, the centimetre is used:
For the purposes of compatibility with Chinese, Japanese and Korean (CJK) characters, Unicode has symbols for:
They are useful only with East Asian fixed-width CJK fonts, because they are equal in size to one Chinese character.
(K)ong-hun