体脂肪率計算機
正確に体脂肪率を計算します
📋 This is an estimate, not a clinical measurement. The Navy circumference method is a validated home-use formula. Individual results may differ from DEXA scans by several percentage points. Best used for tracking trends over time under consistent conditions — same method, same time of day, same measurement technique. If you have health concerns, consult a qualified healthcare provider.
How to Measure & Track
Figure 1: Red dots show where to place the tape for neck, waist (at navel), and hip measurements.
Figure 2: Choose your method based on what equipment you have available.
Figure 3: Track weekly trends — ignore daily fluctuations from water weight.
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Set Goals
体脂肪目標
目標体脂肪率に達するまでにかかる時間を計算
Abs Calculator
腹筋が見えるまでに落とすべき体脂肪量を計算
Ideal Weight
身長と目標体脂肪率に基づいて理想体重範囲を見つける
Calories & Macros
BMR Calculator
Calculate your true BMR using lean body mass — more accurate for athletes & lifters
TDEE Calculator
How many calories do you actually burn each day?
Calorie Deficit
How many calories to eat to reach your goal weight.
Macro Calculator
Lean bulk, cut, or maintain macros.
バルク vs カット
バルク、カット、または体組成改善のどちらが適しているかについての個人化された推奨事項を取得
BMI Calculator
Body Mass Index + healthy weight range.
Health & Body Composition
Women's Health
ホルモン、月経周期、妊娠が体脂肪にどのように影響するかを理解
Waist-to-Hip Ratio
Assess cardiovascular disease risk with WHR.
Water Intake
How much water should you drink daily?
Training & Strength
1RM Calculator
Estimate your one rep max using 4 formulas.
Strength Standards
Compare your lifts to population standards.
Lean Body Mass
Calculate LBM with Boer, James, and Hume formulas.
Advanced
よくある質問(FAQ)
体組成を改善する方法
体脂肪率を減らすためのエビデンスに基づく戦略
栄養
- •適度なカロリー赤字を維持する(維持カロリーより200〜500カロリー少ない)
- •筋肉を維持するために体重1ポンドあたり0.8〜1gのタンパク質を食べる
- •全食品に焦点を当てる:赤身タンパク質、野菜、果物、全粒穀物
- •水分補給を保つ(毎日少なくとも2〜3リットルの水)
運動
- •レジスタンストレーニング(週3〜4回)と有酸素運動(週2〜3回)を組み合わせる
- •漸進的過負荷:徐々に重量と強度を増やす
- •複合運動を含める:スクワット、デッドリフト、ベンチプレス、ロウ
- •効率的な脂肪燃焼のための高強度インターバルトレーニング(HIIT)
ライフスタイル
- •毎晩7〜9時間の質の高い睡眠を取る
- •瞑想、ヨガ、リラクゼーション技術を通じてストレスを管理する
- •一貫性を保つ - 迅速な修正よりも持続可能な変更
- •体重計だけでなく測定で進捗を追跡する
Editorial Note & Sources
This calculator uses the U.S. Navy circumference method, a validated formula published in U.S. Navy instructions[1] and further validated by Potter et al. (2022) in a study of 609 Marines[2]. The Navy method is suitable for home tracking but may differ from DEXA scans by several percentage points. Results are estimates, not clinical measurements.
Sources & Methodology
Medical Review: Reviewed by Dr. Sarah Chen, MD (Family Medicine).
Last Updated: 2026. Editorial Policy: All health claims are reviewed against peer-reviewed research. Read our editorial policy →
Not for: individuals under 18, pregnant/nursing women, those with eating disorders, or anyone undergoing medical treatment. Consult a qualified healthcare provider for clinical assessment.
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