Question:
Hello,
My son is 13 years old and is 156 cm tall. The calculator gives him a score of Tanner 3.1. At 12 years old, he measured 153.5 cm. He was always on the curve above 50%. However, this year, he grew very little, only 2.5 cm. Is it normal? He has a long way to go for maximum growth speed.
Answer:
At some point during stage 3, your son will experience a growth spurt, during which he will grow faster than he did in childhood. Most often, this happens in the middle of stage 3, which is around a year from now for your son. Since your son’s body will be bigger, the internal organs must also grow to support his larger size. Thus, the outward growth in height slows down while the internal changes occur. You may have also noticed that he has been getting a bit chubbier in the last year. This is due to the body storing energy in body fat to support the energy needs of growing rapidly. Be patient.
Question:
Thank you very much. From January to June, he gained 8 kg — going from 40 to 48 kg. Since the beginning of summer, he has developed a little armpit hair. I am 167 cm, and his father is 178 cm. The calculator gives him a height of around 177 cm. Will he reach it? Because now he doesn’t have much height.
Answer:
The KGH calculator gives answers that are 90% accurate. Your son’s final height should be within 5 cm of the predicted adult height, though for 10% of people, the final height will be outside that range (usually due to illness). As your son grows, you’ll see that he will be close to his father’s height.