In pounds, how much is one stone?

In the USA we use pounds as weight measure and inches as oppsed to the metric system. I have seen the show "You are what you eat" and the nutricionist often says: "You weight 2 stones or in those lines. So I am very curious. how many pounds in one stone? Thank you all! CLM|||It is equal to 14 pounds (more precisely avoirdupois pounds), or approximately 6.35 kilograms.|||14lb|||14|||There are 14 pounds in one stone. :-)|||There are 14 pounds in one stone