Bar Converter
Convert Bar to Millibar 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.
Millibarmbar
Target UnitThe millibar (mbar) is a metric unit of pressure defined as one-thousandth of a bar, where 1 bar is equivalent to 100,000 pascals. The millibar is commonly used in meteorology to report atmospheric pressure, providing a more manageable scale compared to the bar. It is defined as 100 pascals, making it convenient for understanding weather phenomena and pressure systems. The millibar is an important unit in various scientific and engineering fields, allowing for precise measurements in a compact form.
Current Use
The millibar is predominantly used in meteorology to report atmospheric pressure, helping meteorologists analyze weather patterns and predict climatic conditions. It is also utilized in various engineering applications, such as HVAC systems and aerodynamics, where precise pressure measurements are critical. While the pascal is the SI unit for pressure, the millibar remains popular in weather reporting and environmental studies.
Fun Fact
The millibar was first widely used in meteorological observations to standardize pressure readings across different regions.
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📐Conversion Formula
= × 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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Millibar
pressure • Non-SI
Definition
The millibar (mbar) is a metric unit of pressure defined as one-thousandth of a bar, where 1 bar is equivalent to 100,000 pascals. The millibar is commonly used in meteorology to report atmospheric pressure, providing a more manageable scale compared to the bar. It is defined as 100 pascals, making it convenient for understanding weather phenomena and pressure systems. The millibar is an important unit in various scientific and engineering fields, allowing for precise measurements in a compact form.
History & Origin
The concept of the millibar emerged in the late 19th century as scientists and engineers sought a practical way to express atmospheric pressure. The bar itself was established as a unit of pressure in 1909 at the International Conference of Weights and Measures. The millibar was subsequently defined as one-thousandth of a bar, making it easier to express lower pressures encountered in meteorological contexts.
Etymology: The term 'millibar' is derived from the SI unit 'bar', which originates from the Greek word 'baros', meaning weight. The prefix 'milli-' signifies a factor of one-thousandth.
Current Use
The millibar is predominantly used in meteorology to report atmospheric pressure, helping meteorologists analyze weather patterns and predict climatic conditions. It is also utilized in various engineering applications, such as HVAC systems and aerodynamics, where precise pressure measurements are critical. While the pascal is the SI unit for pressure, the millibar remains popular in weather reporting and environmental studies.
💡 Fun Facts
- •The millibar was first widely used in meteorological observations to standardize pressure readings across different regions.
- •1 mbar is equivalent to 0.1 kPa, which makes it easier to relate to other pressure units.
- •The millibar is still used in aviation to denote atmospheric pressure levels at which aircraft operate.
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Frequently Asked Questions
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To convert to , multiply your value by 1. For example, 10 equals 10 .
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The formula is: = × 1. This conversion factor is based on international standards.
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