Adjusted Body Weight Calculator

kg
Please enter a valid weight between 20 and 500
cm
Please enter a valid height between 100 and 250 cm
years
Please enter a valid age between 18 and 120
Your Adjusted Body Weight: --
Measurement Value Interpretation
Actual Body Weight -- --
Adjusted Body Weight -- --
Ideal Body Weight -- --
Body Mass Index (BMI) -- --

How It Works & Formula

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Adjusted Body Weight (ABW) is used for patients who are overweight or obese, as it provides a more accurate estimation of lean body mass for medication dosing and nutritional requirements.

The formula used is:

ABW = IBW + 0.4 × (Actual Weight - IBW)

Where IBW (Ideal Body Weight) is calculated using the selected formula:

  • Devine: Male: 50 kg + 2.3 kg per inch over 5 feet; Female: 45.5 kg + 2.3 kg per inch over 5 feet
  • Robinson: Male: 52 kg + 1.9 kg per inch over 5 feet; Female: 49 kg + 1.7 kg per inch over 5 feet
  • Miller: Male: 56.2 kg + 1.41 kg per inch over 5 feet; Female: 53.1 kg + 1.36 kg per inch over 5 feet
  • Hamwi: Male: 48 kg + 2.7 kg per inch over 5 feet; Female: 45.5 kg + 2.2 kg per inch over 5 feet

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