As of version 9.0, unit functionality is built into Mathematica

is a British volume unit.


  • To use , you first need to load the Units Package using Needs["Units`"].
  • is equivalent to approximately 0.00454609 Meter3 (SI units).
  • is equivalent to approximately 4.54609 Liter.
  • Convert[n ImperialGallon, newunits] converts n ImperialGallon to a form involving units newunits.
  • is typically abbreviated as impgal.
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