Bar Converter
Convert Bar to Centipascal 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.
CentipascalcPa
Target UnitThe centipascal (cPa) is a unit of pressure in the metric system, defined as one-hundredth of a pascal (Pa). The pascal is the SI derived unit of pressure, defined as one newton per square meter. Therefore, 1 cPa equals 0.01 Pa. This unit is often used in meteorology and other scientific fields where very small pressure changes need to be measured. The centipascal allows for easier expression of these small values without resorting to decimals. It is part of the broader system of units that include the pascal and its multiples.
Current Use
Centipascal is primarily used in scientific research, particularly in meteorology and fluid dynamics, where minute changes in pressure are critical for accurate measurements. It is commonly utilized in barometers, to measure atmospheric pressure, and in various laboratory settings where precise pressure control is essential. Due to its small value, the centipascal provides convenience for expressing slight pressure variations in a more readable format.
Fun Fact
The pascal is named after Blaise Pascal, a French mathematician, physicist, and inventor.
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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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Centipascal
pressure • Non-SI
Definition
The centipascal (cPa) is a unit of pressure in the metric system, defined as one-hundredth of a pascal (Pa). The pascal is the SI derived unit of pressure, defined as one newton per square meter. Therefore, 1 cPa equals 0.01 Pa. This unit is often used in meteorology and other scientific fields where very small pressure changes need to be measured. The centipascal allows for easier expression of these small values without resorting to decimals. It is part of the broader system of units that include the pascal and its multiples.
History & Origin
The concept of pressure measurement can be traced back to the work of Blaise Pascal in the 17th century, who explored the relationship between pressure, force, and area. The unit of pressure named after him, the pascal, was introduced in 1971 as part of the International System of Units (SI). The centipascal is a smaller derivative of the pascal, reflecting the need for measuring minute pressures in various scientific disciplines.
Etymology: The term 'centipascal' derives from the prefix 'centi-', which means one-hundredth, combined with the name 'pascal' in honor of Blaise Pascal.
Current Use
Centipascal is primarily used in scientific research, particularly in meteorology and fluid dynamics, where minute changes in pressure are critical for accurate measurements. It is commonly utilized in barometers, to measure atmospheric pressure, and in various laboratory settings where precise pressure control is essential. Due to its small value, the centipascal provides convenience for expressing slight pressure variations in a more readable format.
💡 Fun Facts
- •The pascal is named after Blaise Pascal, a French mathematician, physicist, and inventor.
- •A standard atmospheric pressure at sea level is approximately 101325 Pa, which equals 1013250 cPa.
- •The centipascal is often used in specialized scientific contexts, such as in studies of fluid behavior at micro scales.
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