Bar Converter
Convert Bar to Kilopascal and more • 57 conversions
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Unit Explanations
Barbar
Source UnitThe bar is a metric unit of pressure, not part of the International System of Units (SI), but is commonly used in industry and meteorology. It is defined as exactly 100,000 pascals, which is slightly less than the average atmospheric pressure on Earth at sea level. One bar is equivalent to 0.987 atmospheres, 14.5038 pounds per square inch (psi), or 750.06 millimeters of mercury (mmHg). Although not an SI unit, it is accepted for use with the SI and is widely used due to its convenient size for many applications.
Current Use
The bar is widely used in various fields including meteorology for atmospheric pressure, and in industries such as automotive and aviation for tire pressure and cabin pressure monitoring. It is especially favored in contexts where moderate pressures need to be measured with a single-digit number, avoiding the unwieldy values that would result from using pascals.
Fun Fact
The bar is almost exactly the atmospheric pressure on Earth at sea level.
KilopascalkPa
Target UnitThe kilopascal (kPa) is a unit of pressure in the International System of Units (SI), defined as 1,000 pascals. The pascal is the SI derived unit for pressure, defined as one newton per square meter. Therefore, a kilopascal quantifies the force of one newton distributed over an area of one square meter, multiplied by 1,000. It is commonly used to measure pressures in various fields, such as meteorology, engineering, and manufacturing, and provides a clear standard that facilitates comparisons across different systems.
Current Use
The kilopascal is extensively used today across multiple industries, including meteorology for measuring atmospheric pressure, engineering for evaluating material strength, and in automotive industries for tire pressure specifications. It is also prevalent in hydraulics and the food and beverage industry for measuring pressure in processing equipment. The kilopascal is often used in technical specifications and guidelines, ensuring accuracy and uniformity in pressure measurement.
Fun Fact
The kilopascal is commonly used in weather reports to describe atmospheric pressure, making it a household term.
Convert Bar to Kilopascal (bar to kPa)
Convert Bar to Kilopascals (kPa). This implies a straightforward decimal shift in the metric system. The bar is widely used because it is almost exactly equal to atmospheric pressure on Earth, while the kilopascal is the preferred SI unit for scientific reporting.
Multiply the bar value by 100. For example, 2.5 bar × 100 = 250 kPa.
Bar (bar)
Definition
A metric unit of pressure defined as exactly 100,000 pascals.
Origins & History
Introduced by the Norwegian meteorologist Vilhelm Bjerknes in 1909. Derived from the Greek 'baros' (weight).
Kilopascal (kPa)
Definition
One thousand pascals. A derived unit of the International System of Units (SI).
Origins & History
Named after Blaise Pascal, a French mathematician and physicist.
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= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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Bar
pressure • Non-SI
Definition
The bar is a metric unit of pressure, not part of the International System of Units (SI), but is commonly used in industry and meteorology. It is defined as exactly 100,000 pascals, which is slightly less than the average atmospheric pressure on Earth at sea level. One bar is equivalent to 0.987 atmospheres, 14.5038 pounds per square inch (psi), or 750.06 millimeters of mercury (mmHg). Although not an SI unit, it is accepted for use with the SI and is widely used due to its convenient size for many applications.
History & Origin
The bar as a unit of pressure was introduced in the early 20th century. It was created to provide a convenient metric unit for expressing pressures without having to resort to using large numbers, as can occur with the pascal. The bar was defined in 1909 by the International Union of Pure and Applied Chemistry (IUPAC) to be equivalent to 100,000 pascals, simplifying conversion with the SI system.
Etymology: The word 'bar' comes from the Greek word 'baros', meaning weight.
Current Use
The bar is widely used in various fields including meteorology for atmospheric pressure, and in industries such as automotive and aviation for tire pressure and cabin pressure monitoring. It is especially favored in contexts where moderate pressures need to be measured with a single-digit number, avoiding the unwieldy values that would result from using pascals.
💡 Fun Facts
- •The bar is almost exactly the atmospheric pressure on Earth at sea level.
- •The unit 'bar' is not an SI unit, but it's accepted for use with SI due to its practicality.
- •The word 'barometer', an instrument for measuring atmospheric pressure, shares its root with the unit 'bar'.
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Kilopascal
pressure • SI Unit
Definition
The kilopascal (kPa) is a unit of pressure in the International System of Units (SI), defined as 1,000 pascals. The pascal is the SI derived unit for pressure, defined as one newton per square meter. Therefore, a kilopascal quantifies the force of one newton distributed over an area of one square meter, multiplied by 1,000. It is commonly used to measure pressures in various fields, such as meteorology, engineering, and manufacturing, and provides a clear standard that facilitates comparisons across different systems.
History & Origin
The kilopascal was introduced as a part of the metric system, which originated in France during the late 18th century. The pascal itself was named after Blaise Pascal, a French mathematician, physicist, and inventor, who made significant contributions to fluid mechanics and the study of pressure. The use of kilopascals became more prevalent in the 20th century as the metric system was adopted globally for scientific and engineering purposes.
Etymology: The term 'pascal' is derived from Blaise Pascal's name, recognizing his pioneering work in the field of pressure and fluid dynamics. The prefix 'kilo-' comes from the Greek word 'chilioi', meaning 'thousand', which indicates that a kilopascal is one thousand pascals.
Current Use
The kilopascal is extensively used today across multiple industries, including meteorology for measuring atmospheric pressure, engineering for evaluating material strength, and in automotive industries for tire pressure specifications. It is also prevalent in hydraulics and the food and beverage industry for measuring pressure in processing equipment. The kilopascal is often used in technical specifications and guidelines, ensuring accuracy and uniformity in pressure measurement.
💡 Fun Facts
- •The kilopascal is commonly used in weather reports to describe atmospheric pressure, making it a household term.
- •One kilopascal is roughly equivalent to 0.145 pounds per square inch (psi), a unit often used in the United States.
- •The kilopascal is also utilized in the food industry for high-pressure processing, a method to extend shelf life without preservatives.
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Frequently Asked Questions
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