Equivalence
One US fluid pint of water weighs approximately one pound (16 ounces), resulting in the popular saying, "The pint's a pound, the world around." The saying is incorrect, since 1 US pint weighs 1.04375 pounds, and does not apply the world around, because the imperial pint used in Britain and its former colonies weighs 1.25 pounds. A different, but equally useful, saying for the imperial pint is "A pint of pure water weighs a pound and a quarter."
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