What is the formula for children to calculate height and weight?

Patient's question:

No

Doctor's answer:

Calculation Formula for Body Length
Newborn body length: 50cm.
Infant body length: 75cm.
Body length for age over 1 year: 5 × age + 75cm.
Calculation Formula for Body Weight
1-6 months body weight (kg) = birth weight × (0.6 × months)
6-12 months body weight (kg) = birth weight × (0.5 × months)
2-10 years body weight (kg) = age × 2 + 7