Bar Converter
Convert Bar to Microbar 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.
Microbarµbar
Target UnitThe microbar (symbol: µbar) is a non-SI unit of pressure that is defined as one millionth of a bar. A bar is a metric unit of pressure defined as exactly 100,000 pascals (Pa). Therefore, one microbar is equivalent to 0.1 pascals. The microbar is commonly used in meteorology and various scientific fields to measure atmospheric pressure, especially when the pressure values are very low. It allows for easier reporting and understanding of pressure variations in these contexts.
Current Use
Today, the microbar is primarily used in meteorology, oceanography, and various scientific research fields. It is particularly relevant in contexts where atmospheric pressure is measured, such as weather forecasting, climate studies, and aviation. The microbar helps scientists and engineers monitor pressure changes in various environments, enabling better understanding and predictions of weather patterns.
Fun Fact
The microbar is often used in conjunction with other pressure measurements, such as millibars and pascals.
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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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Microbar
pressure • Non-SI
Definition
The microbar (symbol: µbar) is a non-SI unit of pressure that is defined as one millionth of a bar. A bar is a metric unit of pressure defined as exactly 100,000 pascals (Pa). Therefore, one microbar is equivalent to 0.1 pascals. The microbar is commonly used in meteorology and various scientific fields to measure atmospheric pressure, especially when the pressure values are very low. It allows for easier reporting and understanding of pressure variations in these contexts.
History & Origin
The concept of pressure units dates back to early studies in fluid mechanics and thermodynamics. The bar was introduced in the 19th century by the French engineer and physicist Henri Poincaré, who proposed it as a practical unit for measuring atmospheric pressure. The microbar emerged as a convenient subdivision of the bar for applications requiring finer resolution of pressure measurements.
Etymology: The term 'microbar' combines the Greek prefix 'micro-' meaning 'small' with 'bar', a word derived from the Latin 'barra' meaning 'bar, rod'.
Current Use
Today, the microbar is primarily used in meteorology, oceanography, and various scientific research fields. It is particularly relevant in contexts where atmospheric pressure is measured, such as weather forecasting, climate studies, and aviation. The microbar helps scientists and engineers monitor pressure changes in various environments, enabling better understanding and predictions of weather patterns.
💡 Fun Facts
- •The microbar is often used in conjunction with other pressure measurements, such as millibars and pascals.
- •One standard atmosphere (1 atm) is equivalent to 1013.25 hPa, which is equal to 101,325 µbar.
- •The microbar is particularly useful for measuring pressure changes over short time spans, making it ideal for meteorological studies.
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Frequently Asked Questions
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The formula is: = × 1. This conversion factor is based on international standards.
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