Today's interesting fact has to do with Gallons, Quarts, Pints and liquid Ounces.

Most people know that the British Pint (20 British Ounces) is larger than the American Pint (16 American Ounces).

Most people automatically understand therefore, that the British Quart, (2 British Pints) is larger than the American Quart (2 American Pints), and the British Gallon is larger than the American Gallon.

But how many people know that the American liquid Ounce (29.5735296 ml) is larger than the British liquid Ounce (28.4130742)?

To make things slightly more complicated, in the US they also have what is called a US label ounce, which is 30 ml in size.