Centimetre

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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 in scientific notations as 10×10^-3 m (engineering notation) or 1 E-2 m (exponential notation) — meaning 10 × 1 mm or 1 m / 100 respectively. The centimetre is the base unit in the now deprecated centimetre-gram-second system of units.

The centimetre is a non-standard factor, in that factors of 10³ are often preferred. However, it is 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

Among known nicknames for the centimetre are 'chim' and 'c'.

Contents 1 Equivalence to other units of length 2 Uses of centimetre 3 Unicode symbols 4 See also 5 References

Equivalence to other units of length

1 centimetre is equal to:

• 0.01 metres, which can be represented by 1 E-2 m (1 metre is equal to 100 centimetres)
• about 0.393700787401575 inches (1 inch is equal to 2.54 centimetres exactly)

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

Uses of centimetre

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
• in Canadian maps, centimetres are used to make conversions from map scale to real world scale (kilometres)

Unicode symbols

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

• centimetre (㎝) - code 339D
• square centimetre (㎠) - code 33A0
• cubic centimetre (㎤) - code 33A4

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

See also

• 1 E-2 m
• SI
• SI prefix
• Metric system
• Orders of magnitude (length)
• Conversion of units, for comparison with other units of length

References

• CJK Compatibility excerpt from The Unicode Standard, Version 4.1.ar:سنتيمتر

zh-min-nan:Kong-hun ca:Centímetre et:Sentimeeter es:Centímetro eo:Centimetro eu:Zentimetro ko:센티미터 id:Sentimeter ia:Centimetro ka:სანტიმეტრი hu:Centiméter mk:Сантиметар nl:Centimeter ja:センチメートル no:Centimeter nn:Centimeter pl:Centymetr pt:Centímetro ru:Сантиметр sk:Centimeter sl:Centimeter ta:சதம மீட்டர் th:เซนติเมตร vi:Xentimét tr:Santimetre uk:Сантиметр ur:سنٹی میٹر zh-yue:厘米 zh:厘米

Wikipedia information about Centimetre This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Centimetre". It may not have been reviewed by professional editors (see full disclaimer). Help contribute to Americola and edit this article.