Bar Converter
Convert Bar to Newton Square Millimeter 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.
Newton per Square MillimeterN/mm²
Target UnitThe newton per square millimeter (N/mm²) is a metric unit of pressure that measures the amount of force applied per unit area. It is derived from the SI unit of force, the newton (N), and the area unit, the square millimeter (mm²). One newton represents the force required to accelerate one kilogram of mass at a rate of one meter per second squared. The newton per square millimeter is often used in engineering and material science to express tensile strength, yield strength, and other mechanical properties of materials.
Current Use
Today, the newton per square millimeter is widely used in engineering, particularly in the fields of material science and structural engineering. It is common in specifications for materials, especially metals and polymers, to indicate their tensile strength and compressive strength. This unit is particularly useful in assessing the mechanical properties of materials used in construction, automotive, and aerospace industries, where precise measurements are critical for safety and performance.
Fun Fact
A newton per square millimeter is equivalent to 1 megapascal (MPa), which is a common unit in engineering.
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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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🔗 Related Units
Newton per Square Millimeter
pressure • Non-SI
Definition
The newton per square millimeter (N/mm²) is a metric unit of pressure that measures the amount of force applied per unit area. It is derived from the SI unit of force, the newton (N), and the area unit, the square millimeter (mm²). One newton represents the force required to accelerate one kilogram of mass at a rate of one meter per second squared. The newton per square millimeter is often used in engineering and material science to express tensile strength, yield strength, and other mechanical properties of materials.
History & Origin
The newton was named after Sir Isaac Newton in the late 19th century, recognizing his contributions to classical mechanics. It became part of the metric system as the standard unit for force, while the square millimeter is a metric area unit derived from the millimeter, which has been in use since the metric system was established in the late 18th century. The combination of these two units to form N/mm² has allowed for a practical means of expressing pressure in various scientific and engineering applications.
Etymology: The term 'newton' is derived from the Latin 'Newtonius', and the prefix 'milli-' indicates a factor of one-thousandth in metric measurements.
Current Use
Today, the newton per square millimeter is widely used in engineering, particularly in the fields of material science and structural engineering. It is common in specifications for materials, especially metals and polymers, to indicate their tensile strength and compressive strength. This unit is particularly useful in assessing the mechanical properties of materials used in construction, automotive, and aerospace industries, where precise measurements are critical for safety and performance.
💡 Fun Facts
- •A newton per square millimeter is equivalent to 1 megapascal (MPa), which is a common unit in engineering.
- •The human body can withstand pressures of around 1 N/mm² in soft tissues without injury.
- •Some materials, like diamond, have tensile strengths exceeding 100 N/mm², making them incredibly strong.
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Frequently Asked Questions
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