Bar Converter
Convert Bar to Petapascal 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.
PetapascalPa
Target UnitThe petapascal (Pa) is a unit of pressure in the International System of Units (SI), representing one quadrillion pascals (1 Pa = 10^15 Pa). It measures the force applied per unit area, where one pascal is defined as one newton per square meter. The petapascal is predominantly used in scientific and industrial contexts where extremely high pressures are involved, such as in material science, geology, and engineering applications. This unit is vital for quantifying pressures beyond the range of ordinary units, providing clarity in calculations and comparisons.
Current Use
The petapascal is primarily utilized in research and industry sectors where extreme pressures are encountered, such as in deep-sea exploration, high-energy physics, and materials testing. It serves as a standard unit for reporting pressures in scientific literature and engineering specifications. Due to the increasing complexity of modern experiments and technologies, the petapascal allows for more accessible communication of pressure values in these fields.
Fun Fact
The petapascal is equivalent to the pressure exerted by a car sitting on a single square meter of ground.
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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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Petapascal
pressure • SI Unit
Definition
The petapascal (Pa) is a unit of pressure in the International System of Units (SI), representing one quadrillion pascals (1 Pa = 10^15 Pa). It measures the force applied per unit area, where one pascal is defined as one newton per square meter. The petapascal is predominantly used in scientific and industrial contexts where extremely high pressures are involved, such as in material science, geology, and engineering applications. This unit is vital for quantifying pressures beyond the range of ordinary units, providing clarity in calculations and comparisons.
History & Origin
The petapascal originates from the pascal, which was named after Blaise Pascal, a French mathematician, physicist, and inventor known for his contributions to fluid mechanics and pressure measurement. The pascal was adopted as the SI unit of pressure in 1960, forming part of the metric system. The prefix 'peta-' denotes a factor of 10^15, which was established in the International System of Units (SI) in the 1970s to accommodate the need for larger units in scientific measurements.
Etymology: The term 'pascal' is derived from the name of Blaise Pascal, while 'peta' comes from the Greek word for 'five', indicating a power of 15 (10^15).
Current Use
The petapascal is primarily utilized in research and industry sectors where extreme pressures are encountered, such as in deep-sea exploration, high-energy physics, and materials testing. It serves as a standard unit for reporting pressures in scientific literature and engineering specifications. Due to the increasing complexity of modern experiments and technologies, the petapascal allows for more accessible communication of pressure values in these fields.
💡 Fun Facts
- •The petapascal is equivalent to the pressure exerted by a car sitting on a single square meter of ground.
- •In the context of geology, pressures of several petapascals can occur deep within the Earth’s crust.
- •The petapascal is not commonly used in everyday applications, highlighting the extreme conditions it represents.
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Frequently Asked Questions
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