Usage

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This template produces the standardized symbol for the metric unit litre, using the scripted version of the Unicode character ℓ for it. In many fonts, this is more readable than the default rendering of the small letter "l", which can be easily confused with "1" (one) or "|" (pipe). For this reason, CGPM, DIN and IUPAC allow an uppercase letter "L" to be used as alternative to the preferred small "l", but recommend against using it to avoid ambiguity. Other standard bodies, including ISO and IEC, explicitly disallow an uppercase letter "L" to be used as a substitute for the small "l".

In more mathematical articles, it may be preferable to code the symbol using the markup used for other math in the article:

  • <math>l</math> =
  • <math>\ell</math> =

Usage:

  • "2 {{litre}}" produces 2 ℓ
  • "2 m{{litre}}" produces 2 mℓ