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Interesting that they chose "customary" over the proper "imperial".

• cmelbye 13y ago
  Calling our units imperial is inaccurate and not proper. Our system is called customary. Our measurements were based on British units before they were standardized into imperial units.
  • mirkules 13y ago
    To add to this, there are real differences between the imperial and US customary systems: http://en.wikipedia.org/wiki/Comparison_of_the_imperial_and_US_customary_measurement_systems http://en.wikipedia.org/wiki/Comparison_of_the_imperial_and_...
• jleader 13y ago
  The US doesn't use imperial gallons. I think Canada used to use them, and I know the UK did, before they converted to liters. I don't know a specific name for the system of units of measure that includes US gallons.
  • cmelbye 13y ago
    "Customary"...