How long is it from west to east?

Answer 1

There is not a set distance from west to east. The earth is a sphere, so you have to describe places in relation to other places. For instance, I can say London is east of Wales, or Scotland is north of England. You have to have reference points to define as north, south, east and west. For north and south we use the North Pole and South Pole, and we use 1 line that runs from the North Pole to the South Pole through Greenwich, London. Relative to this line China is in the East and America is in the west. Thus, to answer your question, the world is 12756.1 km all the way around at the equator, which is west to east, but it goes back to exactly the same point, so it is also 0 km.