NONSIALLOWEDUNIT: hectare

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  • PID: si:nonsiallowedunit:hectare
  • Definition: A area equal to 10000 m2
  • Source: SI Brochure 9th Edition, page 145
  • Scaling Factor: 10000 m2
  • Status: Valid
  • Valid: 2019-05-20 -
  • Note: The unit hectare and its symbol ha, were adopted by the CIPM in 1879 (PV, 1879, 41). The hectare is used to express land area.
  • Related Definitions
    • hasAllowedNonSIUnitSymbol -> ha