One useful way to determine whether someone is in a healthy weight range is by calculating their body mass index (BMI). BMI is a calculation that uses height and weight to estimate how much body fat someone has. It is used to determine how appropriate a person’s weight is for their height, gender, and age.
TeenHealthFX calculated your BMI based on your height, weight and age and found that you have a BMI of 29.8. This places you at the 97th percentile for boys in your age group, and indicates that you may be at risk for obesity. While this is what your BMI calculation is, you mentioned that you have no noticeable fat – so FX recommends that you meet with your primary care physician or an adolescence medicine specialist to find out if your weight is anything to be concerned about.
As for height, the average height of boys 16-17 years old is about 5’8”. But the fact that you are 6’4” does not necessary mean anything is wrong with you. Different people in this world are different heights, and people will go through their growth spurts at different times in their lives. It may be unusual and you may feel like one of the few in the 6 foot range at your school, but there is nothing abnormal about a person being 6’4” or having such a growth spurt while in high school. But, again, if you have concerns about your height, your doctor is the one to speak to. After a medical examination and learning about any pertinent medical history, your doctor would be the best person to tell you if there is anything to be concerned about or not.
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