What country do you think this is?... Kilometer?...Is that like a foot,...a mile,..a light year?
@mark Personally I prefer the metric system, most of the world uses it therefore it's a lot closer to be a universal measuring system. The change is the hardest part but once it's finished compensation comes, for instance, you wouldn't need to do any math to understand the numbers from the article above =P
1 mile = 1,609344 Km
1 Km = 0.621371 miles