The formula for calculating standard weight is

The calculation formulas for standard weight mainly include the BMI calculation method recommended by the World Health Organization, Broca's formula, and the Chinese adult standard weight formula. Different formulas are applicable to different populations, and when calculating, it is necessary to comprehensively evaluate factors such as height and gender.

1. BMI Calculation Method

The World Health Organization recommends using the Body Mass Index (BMI) as a standard weight reference, with the calculation formula being weight divided by the square of height. The normal range of BMI for Chinese adults is 18.5-23.9. A BMI below 18.5 is considered underweight, 24-27.9 is considered overweight, and a BMI above 28 is considered obese. This method is simple and easy to implement, but does not consider differences in muscle mass. Athletes and other special populations need to be evaluated in conjunction with body fat percentage.

2. Broca's formula

is applicable to the general population with a height of 150-170 centimeters. The standard weight for males is a height minus 100, and for females it is a height minus 105. This formula is easy to calculate but does not take into account age differences, making it less applicable to the elderly. The calculation result is in kilograms and allows for a 5% fluctuation range.

3. Chinese Adult Formula

The standard weight for southerners is 150 minus 0.6 plus 48 for height, and 150 minus 0.6 plus 50 for northerners. This formula takes into account the differences in body shape between people in the north and south of China, and the calculated results are more in line with the national conditions. But without distinguishing gender factors, it is necessary to make a comprehensive judgment based on indicators such as waist circumference.

4. Formula for Children and Adolescents

The weight of infants aged 1-6 months is birth weight plus age multiplied by 0.7, and the weight of infants aged 7-12 months is 6 plus age multiplied by 0.25. The standard weight for children over 1 year old is age multiplied by 2 plus 8. Teenagers should refer to growth curve charts and evaluate their developmental status based on bone age.

5. Formula for elderly people

The standard weight for males over 60 years old is height minus 100 times 0.9, and for females it is height minus 100 times 0.85. Elderly people need to appropriately relax the standard range and pay attention to muscle loss. Suggest conducting a comprehensive evaluation of functional indicators such as grip strength testing.

When calculating standard weight, it is recommended to choose a formula that is suitable for one's own situation and regularly monitor weight changes. Maintain a reasonable dietary structure and engage in moderate aerobic exercise and strength training. Middle aged and elderly people can practice traditional health exercises such as Ba Duan Jin and Tai Chi, while teenagers should ensure sufficient sleep and nutrient intake. If abnormal weight fluctuations are accompanied by discomfort symptoms, timely medical examination should be sought to exclude endocrine and other disease factors.