即時健康評価と推奨付きのボディマス指数を計算します
体重と身長を入力して、体格指数とパーソナライズされた健康洞察を取得してください。
フィットネスプロフェッショナル、医療提供者、ウェルネス愛好家向けのプロフェッショナル健康評価ツール
業界標準の BMI 計算で正確な健康カテゴリアセスメントと推奨
パーソナライズされた推奨と理想体重範囲付きの包括的な健康リスク評価
ウェルネス向けの履歴追跡と目標設定機能付きの進捗監視ツール
メートル法とヤード・ポンド法の測定を世界中でサポートする自動単位検出
リアルタイムのBMI計算と即時の健康洞察および実行可能な推奨事項
すべての健康計算がローカルで行われ、完全なプライバシーとデータセキュリティ保護
よくある質問
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.