Symbols, abbreviations, or full names for units of length,Īrea, mass, pressure, and other types. You can find metric conversion tables for SI units, as wellĪs English units, currency, and other data. It is approximately equal to Earth's atmospheric pressure at sea level.Ĭonversion calculator for all types of measurement units. It is sometimes used as a reference pressure or standard pressure. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar). Piston engine aircraft with constant-speed propellers also use inHg to measure manifold pressure, which is indicative of engine power produced. What is this value in units of atm A barometer reading gives a pressure of 756 mmHg. The resulting altimeter readings are known as flight levels. Chemistry Q&A Library A barometer reading gives a pressure of 756 mmHg. meter kgf/m², kilopascal kPa, millibar, millimeter of mercury mmHg, pascal Pa, pounds per square foot psf, pounds per square inch psi, torr Torr. Atmospheric Pressure 760 mmHg 0.209 P o 2 x 760 mmHg 160 mmHg partial pressure of oxygen in the atmosphere.
Figure 22.12 Atmospheric pressure Intrapleural pressure 756 mm Hg. It is defined as the pressure exerted by a column of mercury of 1 inch in height at 32 ☏ (0 ☌) at the standard acceleration of gravity.Īircraft operating at higher altitudes (above 18,000 feet) set their barometric altimeters to a standard pressure of 29.92 inHg or 1,013.2 hPa (1 hPa = 1 mbar) regardless of the actual sea level pressure, with inches of mercury used in the U.S. Automatic calculator to convert pressure units, atmosphere atm, bar b, hectopascal hPa, kilogram force per sq. Positive respiratory pressure is greater than P atm. It is still widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere. Inches of mercury or inHg is a non-SI unit for pressure.
Inch of mercury to kilogram-force/square meter You can do the reverse unit conversion fromĪtm to inch of mercury, or enter any two units below: Enter two units to convert From: You are currently converting Pressure units from Atmospheres to Millimeter Mercury (0☌) 756.16 Atmospheres (atm) 574681.59999 Millimeter Mercury (0☌) (mmHg).
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