What is overweight for a b15 year old?

Answer 1

It all depends on the weight in kilograms and height in metres.

Weight (KG) / (Height (M) * Height (M))

To Simplify, Square your height first (Height (M)) x 2 = Answer

Then Divide your weight, by your height

Weight (KG) / (Height Answer) [The answer from the previous step]