CalculatorsSurgCritCare calculator
Ideal Body Weight (IBW)
Calculate ideal body weight for ventilator tidal volume dosing.
- Formula
- Male: 50 + 2.3 x inches over 60. Female: 45.5 + 2.3 x inches over 60.
- Clinical context
- IBW is used for lung-protective tidal volumes in ventilated patients.
- Limitations
- Multiple IBW formulas exist. ARDSNet protocol uses Devine formula.
- Source note
- Devine BJ. Drug Intell Clin Pharm 1974. ARDSNet NEJM 2000. PMID: 10793162