Atmospheric pressure at the summit of Mount Everest is about

Last updated: 5/17/2023

Atmospheric pressure at the summit of Mount Everest is about one third the pressure at sea level which is 760 mm Hg If oxygen makes up 21 of the by volume the partial pressure of oxygen PO2 on Mount Everest is approximately O 53 mm Hg O 255 mm Hg O 157 mm Hg O 760 mm Hg