It's just as simple, frankly. A gallon is four quarts, each of which is two pounds of water. A quart is two pints: and a pint's a pound, the world round (Yes, m

It's just as simple, frankly. A gallon is four quarts, each of which is two pounds of water. A quart is two pints: and a pint's a pound, the world round (Yes, most of us are aware of the irony of that couplet). These are all things which are generally known to Americans. But HN has an international audience, for whom "gallon" is presumably somewhat vague.