2500000 pa to psi how to#
With this tool, you can easily determine the psi value of a megapascal value by simply sliding the bar to the left or to the right, the converter instantly calculates and displays the corresponding psi value.īelow, you will find information on how to determine the equivalent value of psi in a megapascal and how to accurately convert megapascal to psi and vice versa. This table lists a range of common megapascal values alongside their corresponding psi equivalents for a quick reference.Īlso, we offer a unique and interactive slide bar converter that simplifies the process of converting common megapascal pressure values. In addition to the converter, the megapascal to psi pressure conversion table can be a helpful resource.
The converter calculates the equivalent pressure in psi and displays the result instantly. It works by taking the input value in megapascals and applying the conversion factor of 145.037737797 psi per megapascal. 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.The megapascal to pound per square inch converter and conversion table provide a simple and efficient way to convert MPa to psi. 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. 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). 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. Definition: A pound-force per square inch (symbol: psi) is an imperial and US customary unit of pressure based on avoirdupois units.
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