The average weight of 17-year-old boys from China is roughly 129 pounds if they live in a urban area and roughly 121 pounds in a rural area. The average weight of 17-year-old girls in China is 114 pounds in a urban area and 112 in a rural area.
These figures are based on a study that was published in 2005 entitled "Study on weight and height of the Chinese people and the differences between 1992 and 2002." The study is published on the National Institutes of Health's PubMed Commons website. The study found that the average weight of Chinese teenagers had increased somewhat since 1992.