# Pressure of O2 at sea level Calculation

Partial Pressure Of Inspired Oxygen - Calculates Pressure of O2 at sea level. at sea level, the atmosphereic pressure is 760 mm Hg.
This equals the force exerted by a column of mercury 760 mm high. Since the atmosphere is 21% oxygen, the partial pressure of O2 is 0.21 x 760 = 160 mm Hg

## Partial Pressure of Inspired Oxygen (Sea Level) Calculator

Partial Pressure Of Inspired Oxygen - Calculates Pressure of O2 at sea level. at sea level, the atmosphereic pressure is 760 mm Hg.
This equals the force exerted by a column of mercury 760 mm high. Since the atmosphere is 21% oxygen, the partial pressure of O2 is 0.21 x 760 = 160 mm Hg

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#### Formula:

CaO2= (Hgb * 1.36 * SaO2 / 100) + PaO2 * 0.0031
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