BMI 身高體重指數

The Body Mass Index (BMI) is a tool used by health professionals to help determine whether a person is a healthy weight.

BMI is calculated by taking a person’s weight and height measurements and using them in the following equation:

BMI = weight/(height)²

It is expressed as kg/m²

  

What do the BMI ‘numbers’ mean?

• <18.5 kg/m ² = underweight
• 18.5 – 24.9 kg/m ² = healthy weight
• 25.0 – 29.9 kg/m ² = overweight
• >30.0 kg/m ² = obese

BMI值是一個用於公眾健康研究的統計工具。BMI值只是一個參考值。要真正量度病人是否肥胖，還需要測量體脂肪率。

w = 體重，單位：千克;

h = 身高，單位：米;

成人的BMI數值

數值的意義如下：

健康狀況	BMI 值
	女性	男性
一般体重	18.5到24.9之间
理想体重	22	24
超重	25到29.9之间
严重超重	30到39.9之间
极度超重	40以上