The formula for bar to Pound-force per Square Inch is: 1 Pound-force per Square Inch (psi) is equal to 0.0689476 bars.1 bar is equal to 14.5038 Pound-force per Square Inch (psi).The major difference between both bar and psi is that the psi helps to measure pressure as a one-pound force applied on an area of a square inch, while the bar is the unit that measures pressure as a force applied perpendicularly on a unit area of a surface. So, let’s first define the basic difference between these units of pressure. It doesn’t matter at all whether you need to convert 1, 2, 3, 5, 6, 10 bar to psi conversions or more, the above online converter helps you in each value.Īnd, if you need to works for these unit conversions in another way, then simply account the below-mentioned formula. One bar is 14.50377 psi, and we can therefore make the following bar to psi formula: bar × 14.50377 psi. Psi is short for pound-force per square inch (lbf/in), and it is the pressure from one pound-force applied to an area of one square inch. Above you will see a field to add the number of bars and the converter will provide you with the new value in psi. A bar is a little less than the average atmospheric pressure on earth at sea level. An online bar to psi converter can allow you to turn the number of bars into the equivalent pound-force per Square Inch (psi). This is true of most countries, including the United States.Looking to turn the value of bars to pounds per square inch (psi), then this tool will help you tremendously. 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 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. 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.

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. Definition: A bar (symbol: bar) is a metric unit of pressure that is defined as exactly 100,000 pascals (symbol: Pa).

Bar to psi conversion