I add :
I will slow:
The international system is so international. Something of it is used only in Russia and in the countries of the former USSR. Even in France have long returned to inches and feet.
and...
The metric system of measurements is officially used all over the world except for the United Kingdom, the United States and Liberia. Exceptions are shipping, aviation and some designations in computer technology (although the latter are actually based on a metric system).
In France there are no inches and feet. They were drunk and drunk.

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In your opinion, the International Bureau of Measures and Weights just so, for beauty, under Paris stands?? to