Calculate BMI from height and weight.
The status according to the standards of the Japan Obesity Society and the World Health Organization is also displayed.
Calculate BMI from height and weight.
The status according to the standards of the Japan Obesity Society and the World Health Organization is also displayed.
BMI, also known as Body Mass Index, is a body mass index that indicates the degree of obesity of a person calculated from height and weight.
Obesity increases the risk of diabetes and high blood pressure. Underweight can also be caused by malnutrition or chronic progressive disease.
Knowing the degree of obesity is useful for disease prevention and treatment.
BMI is calculated using the formula below.
BMI = Body weight(kg) ÷ (Height(m))^{2}
Standard weight = (Height(m))^{2} x 22
The formula for calculating BMI is universal, but the criteria for obesity differ from country to country.
The Japan Obesity Society considers a BMI of 22 to be the normal weight, which is the ideal weight to prevent illness.
Obesity is defined as 25 or more, severe obesity is defined as 35 or more, and underweight is defined as less than 18.5.
Standards of the Japan Obesity Society

World Health Organization (WHO) standards

For infants from 3 months old to 5 years old, the degree of obesity is expressed by the Kaup index.
This is the same as an adult's BMI, and is calculated by the formula "weight (kg) ÷ (height (m))^{2}".
In the case of children and students, the Laurel index expresses the degree of obesity.
The Laurel index is calculated using the formula "weight (kg) ÷ (height (m))^{3} x 3".
Calculation of the degree of obesity (Laurell index) of children and students