Are Nike shoe sizes the same all around the world?

yes and no. the size will be the same but, the size # (number) will be different. so if ur (your) in Europe and want to buy a nike shoe and ur (your) size in the U.S. is 9 ur (your) size would be 42.5 (42 and a half). Hope this helped. And sorry about all t he ( and ) `s .