Pediatric Endotracheal Tube Size Calculator
Parameters
Clinical context
This calculator uses common age-based pediatric estimates: 1) Uncuffed ETT size (internal diameter, mm) = (age / 4) + 4 2) Cuffed ETT size (internal diameter, mm) = (age / 4) + 3 3) Estimated oral insertion depth (cm) = (age / 2) + 12 These are starting estimates; confirm clinically (air leak, capnography, auscultation, and imaging as needed).