使用即时健康评估和推荐计算身体质量指数
输入您的体重和身高以获取身体质量指数和个性化健康洞见。
针对健身专业人士、医疗提供者和健康爱好者的专业健康评估工具
行业标准的 BMI 计算，带有精确的健康类别评估和推荐
全面健康风险评估，带有个性化推荐和理想体重范围
带有历史跟踪和目标设置功能的进度监控工具，用于健康
自动单位检测，支持全球公制和英制测量
实时BMI计算，提供即时健康洞察和可操作建议
所有健康计算均在本地进行，提供完整隐私和数据安全保护
常见问题
BMI (Body Mass Index) is weight in kilograms divided by height in meters squared. A BMI of 18.5-24.9 is considered normal weight. It's a quick screening tool, not a diagnostic — it doesn't distinguish between muscle and fat mass.
Underweight: below 18.5. Normal: 18.5-24.9. Overweight: 25-29.9. Obese: 30 and above. These ranges were established by the WHO and apply to adults over 20. Children and teens use age-specific BMI percentiles instead.
Use BMI as a starting point, not a verdict. Track it over time alongside other metrics like waist-to-hip ratio and blood pressure. Consult a healthcare provider for personalized advice — BMI alone doesn't determine health status.
BMI doesn't account for muscle mass, bone density, age, sex, or fat distribution. Athletes often have high BMI despite low body fat. Waist circumference and body fat percentage provide additional context for health assessment.
No. Children's BMI is interpreted using age- and sex-specific percentile charts because body composition changes significantly during growth. A child's BMI is compared against others of the same age and sex, not fixed adult ranges.
Yes. Research shows that health risks can differ across ethnic groups at the same BMI. For example, some Asian populations may have higher health risks at lower BMI values. WHO suggests adjusted thresholds for certain populations.
Yes. All calculations run locally in your browser. Your weight, height, and BMI results are never sent to any server or stored anywhere. Close the tab and all data is gone.