Bar Converter
Convert Bar to Decipascal 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.
DecipascaldPa
Target UnitThe decipascal (dPa) is a derived unit of pressure in the International System of Units (SI) that represents one-tenth of a pascal (Pa). A pascal is defined as one newton per square meter, which quantifies the force of one newton applied uniformly over an area of one square meter. The decipascal is often used in fields where low-pressure measurements are required, such as meteorology or in specialized scientific applications. Due to its relation to the pascal, it is part of the SI system, but is not a base SI unit.
Current Use
The decipascal is currently employed in various fields such as meteorology, engineering, and materials science where accurate low-pressure measurements are essential. It is particularly useful in laboratory settings where precise control of pressure is required for experiments.
Fun Fact
The pascal was named in honor of Blaise Pascal, who studied the properties of fluids and laid the groundwork for fluid mechanics.
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= × 1.00000How to Convert
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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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Decipascal
pressure • Non-SI
Definition
The decipascal (dPa) is a derived unit of pressure in the International System of Units (SI) that represents one-tenth of a pascal (Pa). A pascal is defined as one newton per square meter, which quantifies the force of one newton applied uniformly over an area of one square meter. The decipascal is often used in fields where low-pressure measurements are required, such as meteorology or in specialized scientific applications. Due to its relation to the pascal, it is part of the SI system, but is not a base SI unit.
History & Origin
The decipascal was created as a practical subdivision of the pascal to facilitate measurements in contexts where pressures are very low. The pascal itself was named after Blaise Pascal, a French mathematician, physicist, and inventor who made significant contributions to fluid mechanics and pressure.
Etymology: The term 'deci-' is derived from the Latin word 'decimus', meaning 'tenth'. Thus, decipascal literally means 'tenth of a pascal'.
Current Use
The decipascal is currently employed in various fields such as meteorology, engineering, and materials science where accurate low-pressure measurements are essential. It is particularly useful in laboratory settings where precise control of pressure is required for experiments.
💡 Fun Facts
- •The pascal was named in honor of Blaise Pascal, who studied the properties of fluids and laid the groundwork for fluid mechanics.
- •One decipascal is equivalent to 0.001 kilopascals, making it a very small unit of pressure.
- •The decipascal was not widely used until the rise of technology that required precise measurements in scientific research.
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Frequently Asked Questions
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