BMI計算機
身長に対する体重の関係を理解するためにBMIを計算します。
BMI（ボディマス指数）を即座に計算。メートル法とヤード法をサポートする無料オンラインBMI計算機。
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