Normal growth is the best indicator of children’s health and well-being. Measuring height and weight is the simplest way of eveluation of growth. In this study the height and weight of 1481 students of Hamadan aging 11-17 was measured and analyzed. Men weight of 11 y boys was 30kgs and their mean height was 138 cm. This figures respectively increase to 55kg and 169.5 cm at age 17. For  girls mean weight at 11 y was 33kg, mean height was 142cm increasing respectively to 50.5 kg and 159cm at age 17. The results of this study is compatible with the measures obtained from the other studies carried out in Iran. But comparing with the North American standards our students, both boys and girls, are significantly shorter and lighter. For boys who were studied the curve of 5^th percentile of weight extends about 6 to 9 kg bellow to those of the North America. So applying American standards to judge the quality of growth of our youth may be misleading. An organized national study to survey the anthropometric measures of our children and youth is suggested.