🫁
Dead Space Calculator
Calculate physiological dead space and Vd/Vt ratio via Bohr's equation
Bohr's Equation: $\frac{V_d}{V_t} = \frac{PaCO_2 - PeCO_2}{PaCO_2}$. Normal physiological dead space to tidal volume ratio ($V_d/V_t$) ranges from 0.20 to 0.40 during normal breathing. Enter values below.
Respiratory Parameters Input
Calculation Results
⚠️ Not medical advice. For critical care and respiratory physiology reference only. Ventilation calculations and ventilator management must be monitored and adjusted by a qualified physician or respiratory therapist.