Comment Re:US Metric System (Score 1) 1387
right, but I can without any real effort convert 1L into mL in my head... Try that in the US where soda in cans is priced in $/fluid ounce (a unit of volume not weight) and soda in large bottle in $/L, or a small block of cheese in $/oz and the large one in $/lbm, example a 6oz brick might cost $2, and a 1.34lb brick might cost $12. Which is cheaper per unit weight? no looking up oz/lbs, and you have to do all the math in your head. Like the soda example above, there are some other things that mix units as well. some weights when small are in grams, and then end up in pounds when larger. So we 'mericans already need to use both, but admit it less than the british do.
Also last I knew all the US imperial measures were based on the metric equivalent, for example, the foot is defined as 0.3 meter (look up the real conversion) and the inch then is defined as 1/12th that. Pounds are the same way with 1lb being equal to 1/2.2 kgs.