⚖️健康
BMI計算機
Use this free BMI calculator to find your Body Mass Index based on height and weight. Understand your weight category — underweight, normal, overweight, or obese — in seconds.
Underweight
Normal weight
Overweight
Obese
Other BMI calculators:
Was this result accurate?
How it works
This bmi計算機 runs entirely in your browser — no data is sent to any server. Simply fill in the fields above and the result updates instantly. You can copy the output with the copy button provided.
Frequently Asked Questions
BMIとは何ですか？
BMI（体格指数）= 体重(kg) ÷ 身長(m)²。体重が健康的かどうかを評価するスクリーニング指標です。
正常なBMIの範囲は？
18.5〜24.9が標準体重。18.5未満は低体重、25〜29.9は過体重、30以上は肥満です。