![]() ![]() Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. You can find metric conversion tables for SI units, as well as English units, currency, and other data. The unit is named after Blaise Pascal, the eminent French mathematician, physicist and philosopher.Ĭ provides an online conversion calculator for all types of measurement units. The pascal (symbol Pa) is the SI unit of pressure.It is equivalent to one newton per square metre. The of vacuum is a relative value where pressure at normal or standard atmosphere is the base value. Piston engine aircraft with constant-speed propellers also use inHg to measure manifold pressure, which is indicative of engine power produced. Pa, 1, 0.001, 1.450 x 10-5, 1.020 x 10-5, 1 x 10-5, 9.869 x 10-5, 1 x 10-6. The resulting altimeter readings are known as flight levels. 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. Express this pressure in atmospheres, kilopascals, torrs, pounds per square inch, and pascals. 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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. Pa to inHg, or enter any two units below: Enter two units to convert From: oz/in² value x 430.922 Pa psi value x 6894.76 Pa oz/in² value psi value x 16 psi pressure related products. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types.You can do the reverse unit conversion from Look up a value in pounds per square inch from 0.1 to 100.0 to obtain the converted value in ounces force per square inch units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.Ĭ provides an online conversion calculator for all types of measurement units. The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) is a unit of pressure or of stress based on avoirdupois units. The unit is named after Blaise Pascal, the eminent French mathematician, physicist and philosopher. The definition of a pascal is as follows: Both Pounds per square inch and Pascals are measurements of pressure. The SI prefix "giga" represents a factor of Units of pressure are described in force/area. Psi to gpa, or enter any two units below: Enter two units to convert From: You can do the reverse unit conversion from
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