Bar Converter
Convert Bar to Dekapascal 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.
DekapascaldPa
Target UnitA dekapascal (dPa) is a derived unit of pressure in the International System of Units (SI) that is equal to 10 pascals (Pa). The pascal is the SI unit of pressure defined as one newton per square meter, and the dekapascal serves as a convenient multiplier for expressing pressure levels that are too small for practical use in pascals alone. The use of dPa allows for easier representation of various atmospheric and related pressures, particularly in meteorological contexts.
Current Use
The dekapascal is commonly used in meteorology to express atmospheric pressure. It's a preferred unit in many contexts where pressure levels are monitored such as weather forecasting and aviation. The dPa is also utilized in engineering fields, particularly in the calibration of instruments and sensors that measure pressure.
Fun Fact
The pascal is one of the least used units in everyday life, yet it plays a critical role in scientific research.
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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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Dekapascal
pressure • Non-SI
Definition
A dekapascal (dPa) is a derived unit of pressure in the International System of Units (SI) that is equal to 10 pascals (Pa). The pascal is the SI unit of pressure defined as one newton per square meter, and the dekapascal serves as a convenient multiplier for expressing pressure levels that are too small for practical use in pascals alone. The use of dPa allows for easier representation of various atmospheric and related pressures, particularly in meteorological contexts.
History & Origin
The concept of pressure measurement dates back to the work of scientists like Blaise Pascal in the 17th century, who investigated fluid mechanics and pressure. The pascal was officially named in 1971 by the International System of Units (SI) after Pascal’s contributions, and the prefix 'deka-' signifies a factor of ten, allowing for larger pressure values without resorting to cumbersome numerical expressions.
Etymology: The term 'dekapascal' combines the Greek prefix 'deka-', meaning ten, with 'pascal', derived from the name of the French mathematician and physicist Blaise Pascal.
Current Use
The dekapascal is commonly used in meteorology to express atmospheric pressure. It's a preferred unit in many contexts where pressure levels are monitored such as weather forecasting and aviation. The dPa is also utilized in engineering fields, particularly in the calibration of instruments and sensors that measure pressure.
💡 Fun Facts
- •The pascal is one of the least used units in everyday life, yet it plays a critical role in scientific research.
- •One dekapascal is equivalent to 0.1 hectopascals, a unit often used in meteorology.
- •Blaise Pascal, after whom the unit is named, also made significant contributions to the fields of probability and fluid mechanics.
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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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