Yoctometre

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The yoctometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: ym) or yoctometer (American spelling) is an SI measure of length that is equal to 10-24 (yocto) of a metre. A yoctometre is equivalent to 1/100 of the diameter of an electron, and 1/100 000 the diameter of a proton or neutron.

In terms of relative length of units, a yoctometre ranks as follows: Planck length << yoctometre << zeptometre. A yoctometre is 1/1000 of a zeptometre (1 zeptometre (zm) = 1,000 yoctometres).

See also

  • 1 E-24 m
  • SI
  • SI prefix
SI units of length
yoctometre <<< zeptometre <<< attometre <<< femtometre <<< picometre <<< nanometre <<< micrometre <<<
millimetre < centimetre < decimetre < metre < decametre < hectometre < kilometre
<<< megametre <<< gigametre <<< terametre <<< petametre <<< exametre <<< zettametre <<< yottametre

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