BMI 计算器
计算您的体质指数，了解您的体重与身高的关系。
在线免费计算您的体质指数（BMI），支持公制和英制。了解您的体重类别和健康影响。
For the full guide in English, visit the English BMI Calculator page.
FAQ
What is a healthy BMI range?
A healthy BMI is between 18.5 and 24.9. Below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is obese.
Is BMI accurate for athletes?
Not always. BMI cannot distinguish between fat and muscle mass. Highly muscular individuals may show a high BMI despite very low body fat.
How is BMI calculated?
BMI = weight in kg ÷ (height in m)². For example: 70 kg ÷ (1.75 m)² = 22.9