The height standard for a 6-year-old boy ranges from 115.7 cm to 121.9 cm, and the exact value can be affected by a number of factors. Height is the vertical distance from the top of the head to the soles of the feet. After the age of 2 and before puberty, the growth rate of a child’s height tends to stabilize at about 5 to 7 cm per year. Since height growth is not uniform and is influenced by genetic and environmental factors, and there are individual differences between individuals, the value obtained from the formula cannot be taken as the standard for evaluating the child’s growth and development level. It should be observed continuously, analyzed comprehensively, and individual differences should be considered in order to make a correct judgment. If the height of a six-week-old boy is significantly different from that of a child of the same age, it is recommended that he seek medical attention in a timely manner.