Convert between Inch mercury (60°F) and other Pressure units.
Inch Mercury (60°F) as a Unit of Pressure
Inch of mercury (inHg) is a unit of pressure, traditionally used in meteorology and various engineering applications. It quantifies pressure by measuring how high a column of mercury can be supported in a vacuum at a temperature of 60°F. At this specific temperature, 1 inHg is equivalent to about 33.86 millibars or 0.0689 atmospheres.
This unit reflects the weight of mercury, which is a dense liquid, and is often employed in barometers, which measure atmospheric pressure. The use of inHg has historical significance, as it originated with early barometers, providing a direct visual measurement of air pressure changes. While SI units like pascals and bars are more common today, inHg remains popular in certain fields such as aviation and meteorology due to its practicality and historical relevance.