Bar Converter
Convert Bar to Millimeter Mercury 0 176 C 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.
Millimeter of Mercury (0.176°C)mmHg
Target UnitThe millimeter of mercury (mmHg) is a unit of pressure derived from the height of a column of mercury exactly 1 millimeter high under the influence of Earth's gravity at a standard acceleration of 9.80665 m/s². It is commonly used in medicine and meteorology to measure blood pressure and atmospheric pressure, respectively. The measurement is equivalent to 133.322 pascals, and it is crucial in various scientific applications for accurately gauging pressure differentials.
Current Use
The millimeter of mercury is widely used in clinical settings to measure blood pressure, expressed as systolic over diastolic readings. It is also utilized in meteorology for atmospheric pressure measurements, where it provides a practical means of reporting weather conditions.
Fun Fact
The blood pressure cuff used in medical settings was invented in 1881 by Samuel Siegfried Karl Ritter von Basch.
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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'.
📏 Real-World Examples
🔗 Related Units
Millimeter of Mercury (0.176°C)
pressure • Non-SI
Definition
The millimeter of mercury (mmHg) is a unit of pressure derived from the height of a column of mercury exactly 1 millimeter high under the influence of Earth's gravity at a standard acceleration of 9.80665 m/s². It is commonly used in medicine and meteorology to measure blood pressure and atmospheric pressure, respectively. The measurement is equivalent to 133.322 pascals, and it is crucial in various scientific applications for accurately gauging pressure differentials.
History & Origin
The use of mercury as a pressure measurement standard dates back to the 17th century, when Evangelista Torricelli, a student of Galileo, discovered that atmospheric pressure could support a column of mercury in a tube. This led to the first barometer and the subsequent use of mmHg as a unit of pressure.
Etymology: The term 'millimeter' derives from the Latin 'mille' meaning 'thousand' and 'metrum' meaning 'measure.' 'Mercury' comes from the Latin 'mercurius,' the name of the Roman god of commerce and financial gain, reflecting the element's historical significance.
Current Use
The millimeter of mercury is widely used in clinical settings to measure blood pressure, expressed as systolic over diastolic readings. It is also utilized in meteorology for atmospheric pressure measurements, where it provides a practical means of reporting weather conditions.
💡 Fun Facts
- •The blood pressure cuff used in medical settings was invented in 1881 by Samuel Siegfried Karl Ritter von Basch.
- •In 1983, the mmHg was officially recognized as a unit of pressure by the National Institute of Standards and Technology (NIST).
- •The barometric pressure at sea level is typically around 760 mmHg, which is used as a standard reference.
📏 Real-World Examples
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Frequently Asked Questions
How do I convert to ?▼
To convert to , multiply your value by 1. For example, 10 equals 10 .
What is the formula for to conversion?▼
The formula is: = × 1. This conversion factor is based on international standards.
Is this to converter accurate?▼
Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.
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