I see you mentioned earlier that you re from GB It s great that you ve taken interest in the metric system but this is certainly a subject where you re wrong I learned to use cm for person height in school as did everyone else in Europe except for GB and Japan cm is used in every country that uses metric units Once again How did you decide on meters for person height I would still like to hear the answer Now don t take this personally I have nothing against you It s just that I really think it would be better if you wrote it correctly from the beginning and other people wouldn t have to correct you