Standard weight method
Standard weight = age x 2+8 (7- 16 years old). Mild obesity: 20%-30% overweight. Moderate obesity: 40%-50% overweight. Severe obesity: more than 50% of standard weight. Standard weight reference table for children (0- 10 years old).
Body mass index method
Body mass index = weight (kg) divided by the square kg/m2 of height (m). Age body mass index value. Normal, overweight, mild obesity, moderate obesity, severe obesity. Under 6 years old: 15- 18,18-20,20-22,22-25,25-. 6- 1 1 year: 16- 19, 19-2 1, 2 1-23, 23-27, 27-.