I won't bother converting mine, 'cause I wear such a huge variety it doesn't matter. I think my actual size is 10 or 11. But I wear up to 13 (US). The shoes I buy usually have a lot of padding in them. Plus for some reason I like room. And air. My feet tend to get hot in tennis shoes for some reason. And I'm not wearing anything else. This thread seems to be developing into something else though. I don't mind divulging other personal information. I'm 5'8" 1/2, around 140lbs. And I like long walks on the beach.