Question

How tall should a 13-year-old child be?

Answer

For males: (Height in cm - 80) × 70% = Standard Weight
For females: (Height in cm - 70) × 60% = Standard Weight
A standard weight range of ±10% is considered normal weight
A standard weight range of ±10% to ±20% indicates overweight or underweight
A standard weight range of more than ±20% indicates obesity or insufficient weight