BMI 计算器
根据身高和体重计算身体质量指数（BMI），并查看您所属的 BMI 分类。支持公制和英制单位。
如何使用此工具
- 1在上方输入框中粘贴或输入内容。
- 2结果即时更新。
- 3一键复制输出结果。
常见问题
BMI 是如何计算的？+
BMI = 体重（kg）÷ 身高（m）²。BMI 在 18.5–24.9 为正常，25–29.9 为超重，30 及以上为肥胖。BMI 是筛查工具，不作为诊断依据。
此工具可以替代医疗建议吗？+
不能。这些计算器仅供一般信息和健康教育使用，如需个人医疗建议，请咨询专业医疗人员。
我的数据安全吗？+
是的。该工具完全在浏览器中运行——您粘贴或输入的任何内容都不会上传到服务器。
教程与深度解析
BMI Explained: Categories, Limitations and What Yours Means
Understand BMI categories, the formula, why athletes skew results, Asian cutoffs, and what to actually do with your number. Clear, evidence-based guide.
How Many Calories Should You Eat? TDEE Explained
Learn how to calculate your TDEE, set the right calorie deficit or surplus, and adjust when progress stalls. Includes activity multipliers and worked examples.
BMR: What It Is and How to Use It to Set Calorie Targets
Learn what BMR is, how Mifflin-St Jeor and Harris-Benedict differ, what factors raise or lower it, and how to build a real calorie target from your number.
Body Fat Percentage: Healthy Ranges and How to Measure It
Learn healthy body fat ranges by gender and age, compare measurement methods (Navy, calipers, DEXA), and understand what essential fat really means.