⚖️ Ideal & Adjusted Body Weight (Devine)
Calculate ideal and adjusted body weight (Devine) for medication and ventilator settings.
Ideal & Adjusted Body Weight (Devine)
Height (cm)
Actual weight (kg)
Sex
When to use
Weight-based dosing and tidal-volume calculations.
How it works
Devine IBW = (50 male / 45.5 female) + 2.3 × (height in inches − 60). Adjusted BW = IBW + 0.4 × (actual − IBW).
Key points
- IBW is used for tidal-volume (mL/kg) and some drugs.
- Adjusted BW is common for dosing in obesity.
- Always follow the specific drug's weight basis.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.