Centi-

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Centi (symbol c) is a unit prefix in the metric system denoting a factor of one hundredth. Proposed in 1793, [1] and adopted in 1795, the prefix comes from the Latin centum, meaning "hundred" (cf. century, cent, percent, centennial). Since 1960, the prefix is part of the International System of Units (SI). It is mainly used in combination with the unit metre to form centimetre, a common unit of length.

Example

SI prefixes
PrefixBase 10 Decimal Adoption
[nb 1]
NameSymbol
quettaQ 1030 10000000000000000000000000000002022 [3]
ronnaR 1027 1000000000000000000000000000
yottaY 1024 10000000000000000000000001991
zettaZ 1021 1000000000000000000000
exaE 1018 10000000000000000001975 [4]
petaP 1015 1000000000000000
teraT 1012 10000000000001960
giga G 109 1000000000
mega M 106 10000001873
kilo k 103 10001795
hecto h 102 100
deca da 101 10
—— 100 1—
deci d 10−1 0.11795
centi c 10−2 0.01
milli m 10−3 0.001
micro μ 10−6 0.0000011873
nano n 10−9 0.0000000011960
picop 10−12 0.000000000001
femtof 10−15 0.0000000000000011964
attoa 10−18 0.000000000000000001
zeptoz 10−21 0.0000000000000000000011991
yoctoy 10−24 0.000000000000000000000001
rontor 10−27 0.0000000000000000000000000012022 [3]
quectoq 10−30 0.000000000000000000000000000001
Notes
  1. ↑ Prefixes adopted before 1960 already existed before SI. The introduction of the CGS system was in 1873.

See also

References

  1. ↑ Commission temporaire de Poids & Mesures rêpublicaines, En exécution des Décrets de la Convention Nationale (1793). Instruction abrégée sur les mesures déduites de la grandeur de la Terre; uniformes pour toute la Rêpublique, et sur les Calculs relatifs à leur division décimale (in French) (Edition originale ed.). Paris, France: De l´imprimerie nationale exécutive du Louvre . Retrieved 2015-10-09.
  2. ↑ "Universcale: From the nanoworld to the universe — The worlds we measure using our infinite yardstick". Nikon. 2013. Archived from the original on 2017-02-08. Retrieved 2017-02-08.
  3. 1 2 "On the extension of the range of SI prefixes". 18 November 2022. Retrieved 5 February 2023.
  4. ↑ "Metric (SI) Prefixes". NIST.
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