Meteorologists and weather reporters worldwide often use this unit for convenience, since working in pascals would result in much larger values.ġ5 psi = 15 × 0.0689475729 bar = 1. 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. 1 psi 0.0689475729 bar Example: convert 15 bar to psi: 15 bar 15 × 14.503773773 psi 217. 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. History/origin: The unit, bar, was introduced by Vilhelm Bjerknes, a Norwegian meteorologist who founded modern weather forecasting. It is equal to 0.987 atmospheres (101,325 Pa), the unit often used as a reference of standard pressure. Barĭefinition: A bar (symbol: bar) is a metric unit of pressure that is defined as exactly 100,000 pascals (symbol: Pa). 1 bar is equal to 100,000 Pascals, which is. It is widely used in the daily life particularly in European countries, though that is a non-SI unit. Bar : The bar is a unit of measurement for pressure. 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. 0.06895 Bar (bar) Psi : Psi is the abbreviation of pound per square inch, and is widely used in British and American. The Pressure in Bar is equal to the Pound per Square Inch multiplied by 14.5038. To convert any bar measurement to psi, use this formula: bar psi x 14.5038. 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. If you want to convert 10 Bar to Pound per Square Inch, follow this formula: 10 bar x 14.5038 psi per bar 145.038 psi. The system is believed to have come into use in England around 1300 and was used in the international wool trade. This point of conversion is multiplication by 14.504. It is based on the avoirdupois system, a system that uses weights in terms of the avoirdupois pound, which was standardized in 1959. This can be done by finding their mutual point of conversion. 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. In addition, an API-676-compliant design, production according to. Table showing various bar measurements converted to pounds per square inch.Definition: A pound-force per square inch (symbol: psi) is an imperial and US customary unit of pressure based on avoirdupois units. Enter a number to convert Bars to Pound-force Per Square Inchs. gpm, (m3/h), gpm, in bar, in psi, (C), (F). The bar to psi conversion calculator below help you to quickly and accurately, find the equal value for the selected pressure unit. Pressure in pounds per square inch are equal to the pound-force divided by the area in square inches.īar to Pound per Square Inch Conversion Table Pounds per square inch can be abbreviated as psi for example, 1 pound per square inch can be written as 1 psi. A pound per square inch is sometimes also referred to as a pound-force per square inch. The pound per square inch is a US customary and imperial unit of pressure. One pound per square inch is the pressure of equal to one pound-force per square inch.
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