So, to convert directly from bar to pounds per square inch, you multiply by 14.503774. 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. For example, to convert from bar to pounds per square inch you would multiply by 100000 then divide by 6894.757. 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.
Pound-force per square inchĭefinition: A pound-force per square inch (symbol: psi) is an imperial and US customary unit of pressure based on avoirdupois units. Meteorologists and weather reporters worldwide often use this unit for convenience, since working in pascals would result in much larger values. Millibars (symbol: mb) are also commonly used when referencing atmospheric air pressure, where atmospheric pressure equals 1013.25 mbar (101.325 kPa). The International Bureau of Weights and Measures has specified the bar as a unit that authors should have the freedom to use but has chosen not to include the bar in the list of non-SI units accepted for use with SI. The term "bar" comes from the Greek word "baros," which means weight.Ĭurrent use: Although the bar is a metric unit of pressure, it is not accepted within the International System of Units (SI) and is even deprecated within certain fields. 1Psi 0.06895bar The pressure p in bar (bar) is equal to the pressure p in psi (Psi) times 0.06895, that conversion formula: p (bar) p (Psi) × 0.06895 How many Bar in a Psi One Psi is equal to 0.06895 Bar: 1Psi 1Psi × 0.06895 0.
#750 psi to bar how to#
History/origin: The unit, bar, was introduced by Vilhelm Bjerknes, a Norwegian meteorologist who founded modern weather forecasting. 750 Psi 51.71068 Bar How to convert Psi to Bar 1 psi (Psi) is equal to 0.06895 bar (bar). It is equal to 0.987 atmospheres (101,325 Pa), the unit often used as a reference of standard pressure. Definition: A bar (symbol: bar) is a metric unit of pressure that is defined as exactly 100,000 pascals (symbol: Pa).
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