The standard height for boys 11 years old is around 130.76-159.64cm. There is a relatively large variation in the development level of boys at the age of 11, and the standard height can only be used as a reference. The reference height for boys of this age is usually around 130.76-159.64cm. If a child’s height is within two standard deviations above or below the standard height, he or she is considered to be developing normally. A child’s height is related to both genetic factors and acquired factors. Genetic factors have a great influence on a child’s body, and generally speaking, if the parents are tall, the child will not be short, but it is also related to acquired diet, exercise, sleep, etc. There are limitations in checking the height according to the height standard. At the same time, it is recommended to assess the height according to the bone age is more accurate, you can go to the hospital to do bone age test, you can know whether the child’s height is normal or not.