Respiratory

Static Compliance Calculator

Lung and chest wall stretchiness with no flow (tidal volume over plateau minus PEEP); falls in ARDS, pulmonary edema and pneumothorax.

Reviewed by Alex G, BSN, RN, CEN, CCRN, CMC, NREMT-P · From the Reference tab of the app

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Formula

Vt / (Pplat - PEEP)

How it is used

• Normal static compliance in intubated patients is 50-100 mL/cmH₂O.

Decreased Compliance (< 30 mL/cmH₂O)

Indicates stiff lungs or chest wall. Causes include

• ARDS
• Pulmonary fibrosis
• Pulmonary edema
• Pneumothorax
• Abdominal compartment syndrome

Same formula as the app. Open it in the web app.

Related one-pagers

• Ventilator Modes and SettingsStatic compliance · Vt ÷ (plateau − PEEP) · 50–100 mL/cm H₂O; ARDS often <40
• ABG Interpretation in 6 Steps

Related calculators

• A-a Gradient
• Alveolar Gas Equation (PAO₂)
• Arterial Oxygen Content (CaO₂)
• Dead Space Fraction (Bohr)
• Driving Pressure
• Dynamic Compliance
• Minute Ventilation
• O₂ Extraction Ratio

For education and exam preparation only. Follow your institution’s protocols. For education and exam preparation only. Verify results independently and follow your institution’s protocols. Not a substitute for clinical judgment.