Adjusted Body Weight Calculator
Calculate adjusted body weight for accurate nutritional needs and medical dosing calculations
Calculate Adjusted Body Weight
Required for ideal body weight calculation
Height in centimeters
Current body weight for adjustment calculation
Calculation Results
Clinical Application
Example Calculation
Male Patient Example
Height: 180 cm (5'11")
Actual Weight: 90 kg (198 lbs)
Ideal Weight: 52 + 1.9 × (71 - 60) = 52 + 20.9 = 72.9 kg
Adjusted Weight: 72.9 + 0.4 × (90 - 72.9) = 72.9 + 6.84 = 79.7 kg
Use Case: Use 79.7 kg for nutritional calculations instead of 90 kg
Female Patient Example
Height: 165 cm (5'5")
Actual Weight: 75 kg (165 lbs)
Ideal Weight: 49 + 1.7 × (65 - 60) = 49 + 8.5 = 57.5 kg
Adjusted Weight: 57.5 + 0.4 × (75 - 57.5) = 57.5 + 7.0 = 64.5 kg
Use Case: Use 64.5 kg for nutritional calculations instead of 75 kg
When to Use Adjusted Weight
About Adjusted Body Weight
Accounts for metabolic differences in adipose tissue
More accurate than actual weight for overweight patients
Used by dietitians and healthcare professionals
Based on Robinson's ideal body weight formula
Understanding Adjusted Body Weight
What is Adjusted Body Weight?
Adjusted Body Weight (AjBW) is a calculated value used in clinical settings to provide more accurate estimates for nutritional needs and medication dosing in overweight or obese patients. It accounts for the fact that adipose tissue is less metabolically active than lean tissue.
Why Use Adjusted Body Weight?
- •Prevents overestimation of nutritional needs in obese patients
- •Provides more accurate medication dosing guidelines
- •Improves treatment outcomes and safety
- •Standardized approach for healthcare professionals
Calculation Method
AjBW = IBW + 0.4 × (ABW - IBW)
Where IBW = Ideal Body Weight, ABW = Actual Body Weight
Robinson's IBW Formula:
Men: 52 kg + 1.9 kg per inch over 5 feet
Women: 49 kg + 1.7 kg per inch over 5 feet
Clinical Applications
- •Nutritional assessment and diet planning
- •Medication dosing calculations
- •Weight management programs
- •Research and clinical studies
Medical Disclaimer: This calculator is for educational purposes only. Always consult with healthcare professionals for medical advice, treatment decisions, and medication dosing. Individual patient factors should always be considered.