Adjusted Body Weight Calculator
Calculate adjusted body weight (ABW) for accurate medication dosing in obese patients. Based on ideal body weight and adjustment factors.
Patient Details
cm
kg
Typically 0.25-0.4 for most medications
Recommended for Dosing
75.6 kg
Adjusted Body Weight
🎯Ideal Body Weight
65.9 kg
⚖️Adjusted Body Weight
75.6 kg
📊Actual Weight
90.0 kg
📈% Over IBW
36.5%
Obesity Adjustment Required
Patient is 36% above ideal body weight. Use Adjusted Body Weight for medication dosing to avoid overdosing.
When to Use Adjusted Body Weight
Medications Using ABW
- Aminoglycosides (gentamicin, tobramycin)
- Vancomycin
- Some chemotherapy agents
- Heparin (in some protocols)
Adjustment Factors
- 0.4 - Most common (aminoglycosides)
- 0.3 - Vancomycin dosing
- 0.25 - Conservative adjustment
- Consult drug references for specific medications