Originally Posted by kacir
I hate to break the news to you ;-)
but it is YOUR paper that is being measured in strange medieval units (12 inches make 1 foot, 3 feet makes 1yard and so on...) the rest of world has moved to sensible decadic units looooong time ago.
So proper dimensions are:
A4 is 210x297 mm
Letter is 216x279 mm
You left out the truly superior
Texas measurements such as: yonder, a piece, a ways, a hunk, etc.