Psi to Kilopascal Conversion Table Psi ġ5 psi = 15 × 6.8947572932 kPa = 103. This is true of most countries, including the United States. The kilopascal is more prevalent in scientific contexts such as material science, engineering, and geophysics. Exceptions include certain countries that use either the imperial or United States customary systems of measurement, such as the United States, in which the unit of pound per square inch is more commonly used. In 1971, at the 14 th General Conference on Weights and Measures, the pascal was adopted as an SI derived unit of pressure.Ĭurrent use: The kilopascal is widely used worldwide in countries that have adopted SI. The kilopascal is simply a multiple of the pascal, as is common within SI. History/origin: The unit, pascal, is named after Blaise Pascal, a French mathematician and physicist. A kilopascal is defined as 1,000 Pa, where 1 Pa is defined as the pressure exerted by a 1 newton force applied perpendicularly to an area of one square meter, expressed as 1 N/m 2 or 1 kg/m The commonly used multiple units of the pascal are the hectopascal (1 hPa 100 Pa), kilopascal ( Pa), and megapascal (1 MPa 1,000,000 Pa). It is defined as one newton per square meter. Kilopascalĭefinition: A kilopascal (symbol: kPa) is a multiple of the pascal (Pa), an SI (International System of Units) derived unit of pressure used to measure internal pressure, Young's modulus, stress, and ultimate tensile strength. Psi : Pascal : The pascal (symbol: Pa) is the SI unit of pressure which derived from other SI units. Although the pascal is more widely used in scientific contexts, psi is more often used in everyday contexts, particularly in countries like the United States as well as others under the US customary or imperial systems of units. As such, the prototype pound at the time was known as the avoirdupois wool pound.Ĭurrent use: The psi is fairly widely used to measure numerous pressures, such as tire pressure, scuba tank pressure, natural gas pipeline pressure, among others. The system is believed to have come into use in England around 1300 and was used in the international wool trade. It is based on the avoirdupois system, a system that uses weights in terms of the avoirdupois pound, which was standardized in 1959. History/origin: Pound-force per square inch is a unit that originated in the imperial and US customary systems of units. One psi is approximately 6,895 pascals (N/m 2). It is defined as the pressure that results when a force of one pound-force is applied to a one-square-inch area. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types.Definition: A pound-force per square inch (symbol: psi) is an imperial and US customary unit of pressure based on avoirdupois units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. 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. Atmospheric pressure for differential calculations is locked at 760 Torr in this table, although varies on any day with weather, altitude and temperature. PSI-G, In H2O, In Hg are in gauge or differential from Atmosphere. Minus 30 inHg 4-20mA air pressure sensor for measuring vacuum in a sealed tank heated to 350F LEX1 (Ei) High Accuracy Digital. Torr, mtorr, microns, PSI-A, Bar, mbar, kPa, Pa and ATM are in absolute units. What is pounds per square inch (psi) Pounds per square inch (or pound-force per square inch) is a non-SI unit of Pressure.The symbol for pounds per square inch is psi or lbf/in 2.There are 0.00014504 psi in a pascal. (Pa) psi value inH g value / 2.03602 inHg 0☌ pressure related products. The following is a list of definitions relating to conversions between psi and pascals. The pascal (symbol Pa) is the SI unit of pressure.It is equivalent to one newton per square metre. An inches of mercury column pressure value can be displayed in pounds per square inch pressure units with the following conversion factor. The definition of a pascal is as follows: The SI prefix "mega" represents a factor of
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