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Rule "1-litre/1-liter"

This is one of many errors that LanguageTool can detect.

Description: 1-litre/1-liter
Message: The word '\1' is an adjective (SI unit of measurement), but the spelling is not correct American English.
Category: British English phrases (ID: BRITISH_ENGLISH)
Incorrect sentences
that this rule can detect:
  • Use a 6-millimetre bolt.
  • Use a 10-metre rope.
  • The 4.6-centigramme difference is not a problem.
  • Also find typographic errors: a 5.7.8-femtogramme difference is not important.
Correct sentences
for comparison:
  • Use a 6-millimeter bolt.
  • Do not find incorrect English: use a 10-millimetres bolt.
ID: SI_UNITS_OF_MEASUREMENT_ADJECTIVES_BRE [1]
Version: 6.7-SNAPSHOT (2025-07-12 22:33:09 +0200)