無料 理想体重計算機
4つの臨床式（Devine、Robinson、Miller、Hamwi）で理想体重を計算します。
1. Unit System
2. Your Details
これらの式はどう計算されますか？
Devine Formula (1974)
Men: IBW = 50 + 2.3 kg per inch over 5 feet
Women: IBW = 45.5 + 2.3 kg per inch over 5 feet
Robinson Formula (1983)
Men: IBW = 52 + 1.9 kg per inch over 5 feet
Women: IBW = 49 + 1.7 kg per inch over 5 feet
Miller Formula (1983)
Men: IBW = 56.2 + 1.41 kg per inch over 5 feet
Women: IBW = 53.1 + 1.36 kg per inch over 5 feet
Hamwi Formula (1964)
Men: IBW = 48 + 2.7 kg per inch over 5 feet
Women: IBW = 45.5 + 2.2 kg per inch over 5 feet
よくある質問
What is Ideal Body Weight (IBW)?
Ideal Body Weight (IBW) is a clinical estimation of what a person should weigh based on their height and sex. It's commonly used in healthcare settings for medication dosing, nutritional assessments, and setting weight goals. IBW was originally developed to standardize drug dosages.
Which IBW formula is most accurate?
The Devine formula (1974) is most commonly used in clinical practice and is considered the standard for medication dosing. However, the Robinson formula may be more accurate for the general population as it allows for a broader range of healthy weights.
What is Adjusted Body Weight?
Adjusted Body Weight (AdjBW) is used when actual weight significantly exceeds IBW (typically by 30% or more). It accounts for the metabolically active portion of excess weight using the formula: AdjBW = IBW + 0.4 x (Actual Weight - IBW). This is important for accurate nutritional and medication calculations in obese patients.
Why do different formulas give different results?
Each formula was developed using different study populations and methodologies. Devine's formula was created for drug dosing, while others like Miller were designed with broader populations in mind. The differences reflect varying assumptions about optimal body composition.
When should I use Adjusted Body Weight?
Use Adjusted Body Weight when actual weight exceeds IBW by 30% or more. This is particularly important for calculating protein and calorie needs in obese patients, as well as for certain medication dosing. Using actual weight would overestimate needs, while IBW alone would underestimate them.