Bar Converter
Convert Bar to Poundal Square Foot 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.
Poundal Square Footpdl·ft²
Target UnitThe poundal square foot (pdl·ft²) is a unit of pressure derived from the poundal, a unit of force, and the square foot, a unit of area. It is defined as the pressure exerted by a force of one poundal applied uniformly over an area of one square foot. This unit is part of the foot-poundal system of units, which was established to provide a consistent framework for measuring force, mass, and distance in the imperial system. It is not commonly used in scientific literature but provides a unique perspective on pressure measurements within certain engineering applications.
Current Use
Today, the poundal square foot finds limited application in niche engineering contexts, particularly in the fields of civil and mechanical engineering where imperial units are still prevalent. It is sometimes used to calculate stresses and strains in materials subjected to forces, particularly in the United States. Although it is not a standard unit in international engineering, it may be referenced in historical documents or specific design calculations.
Fun Fact
The poundal is less commonly known than the more popular pound-force, as the poundal is specifically designed for use in the foot-poundal system.
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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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💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
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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Poundal Square Foot
pressure • Non-SI
Definition
The poundal square foot (pdl·ft²) is a unit of pressure derived from the poundal, a unit of force, and the square foot, a unit of area. It is defined as the pressure exerted by a force of one poundal applied uniformly over an area of one square foot. This unit is part of the foot-poundal system of units, which was established to provide a consistent framework for measuring force, mass, and distance in the imperial system. It is not commonly used in scientific literature but provides a unique perspective on pressure measurements within certain engineering applications.
History & Origin
The poundal square foot originates from the foot-poundal system devised in the late 19th century as a coherent system of units for mechanics. The poundal itself was introduced by the American engineer and physicist William John Macquorn Rankine in 1859, as part of a system intended to simplify calculations in mechanics. The square foot, a unit of area, was already well established in the imperial measurement system. The integration of these two units provided a specialized measure of pressure that, while not widely adopted, holds significance in specific engineering contexts.
Etymology: The term 'poundal' comes from the combination of 'pound,' a unit of force, and the Latin suffix '-al,' denoting a relation to a particular quantity. The term 'square foot' derives from the combination of 'foot,' a unit of length, and 'square,' indicating the area derived from multiplying the length by itself.
Current Use
Today, the poundal square foot finds limited application in niche engineering contexts, particularly in the fields of civil and mechanical engineering where imperial units are still prevalent. It is sometimes used to calculate stresses and strains in materials subjected to forces, particularly in the United States. Although it is not a standard unit in international engineering, it may be referenced in historical documents or specific design calculations.
💡 Fun Facts
- •The poundal is less commonly known than the more popular pound-force, as the poundal is specifically designed for use in the foot-poundal system.
- •While the poundal square foot is not widely used today, it offers insight into historical engineering practices prevalent in the 19th century.
- •The concept of pressure as a force per unit area can be traced back to the works of Blaise Pascal, who laid the groundwork for modern fluid mechanics.
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🔗 Related Units
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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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