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Decimal multiples and submultiples of SI units

MultiplePrefixSymbol
1024yottaY
1021zettaZ
1018exaE
1015petaP
1012teraT
109gigaG
106megaM
103kilok
102hectoh
101decada
SubmultiplePrefixSymbol
10−1decid
10−2centic
10−3millim
10−6microμ
10−9nanon
10−12picop
10−15femtof
10−18attoa
10−21zeptoz
10−24yoctoy

References

  • Comptes Rendus de la 11e CGPM (1960), 1961 (p. 87).
  • Comptes Rendus de la 12e CGPM (1964), 1965 (p. 94).
  • Comptes Rendus de la 19e CGPM (1991), 1992 (p. 185).

See also