BMI Calculator｜身体质量指数计算器

BMI 计算器 | BMI Calculator

BMI 计算器 BMI Calculator

根据身高与体重计算身体质量指数（BMI），粗略评估体重是否偏轻、正常、超重或肥胖。
Enter your height and weight to calculate Body Mass Index (BMI) and estimate whether your weight is underweight, normal, overweight, or obese.

1. 输入参数 · Personal Parameters
请填写赤脚或穿薄袜的身高，单位为厘米（cm）。例如 170 表示 1.70 米。
Enter your height in centimeters (cm), measured without shoes. For example, 170 means 1.70 meters.
体重单位为千克（kg），例如 65 表示 65 公斤。
Enter your body weight in kilograms (kg), for example 65 means 65 kilograms.
中国标准：偏瘦 < 18.5；正常 18.5–23.9；超重 24.0–27.9；肥胖 ≥ 28。
WHO 标准：Underweight < 18.5；Normal 18.5–24.9；Overweight 25.0–29.9；Obesity ≥ 30。
Chinese guideline: Underweight < 18.5; Normal 18.5–23.9; Overweight 24.0–27.9; Obesity ≥ 28. WHO guideline: Underweight < 18.5; Normal 18.5–24.9; Overweight 25.0–29.9; Obesity ≥ 30.
3. BMI 指数说明 · About BMI
  • BMI 是什么？· What is BMI?
    BMI（Body Mass Index，身体质量指数）是用体重除以身高平方得到的数值，用于粗略判断成人体重是否在一个合理范围内。
    BMI is calculated from your weight and height and is commonly used as a simple indicator to classify underweight, normal weight, overweight, or obesity in adults.
  • 中国成人 BMI 参考 · Chinese adult BMI guideline:
    偏瘦：BMI < 18.5
    正常：18.5 ≤ BMI < 24.0
    超重：24.0 ≤ BMI < 28.0
    肥胖：BMI ≥ 28.0
    Under Chinese guideline, BMI <18.5 is underweight, 18.5–23.9 is normal, 24.0–27.9 is overweight, and ≥28.0 is obese.
  • WHO 成人 BMI 参考 · WHO adult BMI guideline:
    Underweight：BMI < 18.5
    Normal：18.5 ≤ BMI < 25.0
    Overweight：25.0 ≤ BMI < 30.0
    Obesity：BMI ≥ 30.0
    WHO guideline is often used in international comparisons; however, Asian populations may need slightly lower cut-offs.
  • 局限性 · Limitations:
    BMI 只根据身高和体重计算，无法区分脂肪与肌肉，对儿童、孕妇、运动员及老年人等人群的参考意义有限。
    BMI is only based on height and weight, and cannot distinguish muscle from fat. It is less accurate for children, pregnant women, athletes and the elderly.

说明：本工具仅用于健康教育与日常自测，不作为任何医疗诊断或治疗依据。如对自身健康状况有疑问，请咨询专业医生或营养师。
Note: This tool is for educational and self-monitoring purposes only and should not be used as a basis for any medical diagnosis or treatment. Please consult a health professional if you have concerns about your health.