Who calculation method
Male: (height cm-80)×70%= standard weight.
Female: (height cm-70)×60%= standard weight.
Standard weight plus or minus 10% is normal weight.
Standard weight plus or minus 10%~20% overweight or underweight.
More than 20% of the standard weight is obese or underweight.
Overweight calculation formula
Overweight% = [(actual weight-ideal weight)/(ideal weight) ]× 100%
Different age algorithm
Standard weight method
Mild obesity: 20%-30% overweight.
Moderate obesity: 30%-50% overweight.
Severe obesity: more than 50% of standard weight.
Body mass index method
The square of body mass index = weight (kg)/ height (m) is kg/m2.
Simple calculation method
1. Calculation method 1:
Body mass index = weight (kg)/height (m) squared.
Formula writing: body mass index = weight/(height) 2
Normal weight: body mass index = 18.5-25 (China physical health standard: normal range: 18.5~23.9, overweight 24.0~27.9, obesity ≥28.0).
Overweight: body mass index =25-30.
Mild obesity: body mass index >; 30
Moderate obesity: body mass index >; 35
Severe obesity: body mass index >; 40
2. Calculation method 2:
Standard weight = height (m) × height (m) × standard coefficient (female 20, male 22)
Standard weight plus or minus 10% is normal weight.
Standard weight plus or minus 10%~20% is overweight or underweight.
A standard weight of plus or minus 20 or above is obesity or underweight.
3. Calculation method 3:
Standard weight (kg) = height (cm)-105
For example, a man with a height of 170cm should weigh170 (cm)-105 = 65 (kg). Those who exceed the standard weight 10% are overweight, and those who exceed 20% are obese; Under 0/0% of standard weight/kloc, those below 20% are thin.
Note: The above calculation method is only applicable to adults. Not suitable for children, old people or people who are too short.