Pascal Converter
Convert Pascal to Millimeter Mercury 0 176 C and more • 57 conversions
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Unit Explanations
PascalPa
Source UnitThe pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
Fun Fact
The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
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.
Pascal
pressure • SI Unit
Definition
The pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
History & Origin
The pascal was named in honor of Blaise Pascal, a French mathematician, physicist, and inventor known for his contributions to fluid mechanics and the study of pressure. The unit was officially adopted as the SI unit for pressure in 1971, although the concept of pressure itself dates back to early scientific studies of fluids and gases. The pascal provided a standardized way to measure pressure, replacing a variety of non-standard units previously in use across different regions and industries.
Etymology: The term 'pascal' is derived from the name of Blaise Pascal.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
💡 Fun Facts
- •The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
- •One pascal is a very small pressure; it is equivalent to the pressure of a dollar bill lying flat on a table.
- •The human eardrum can detect pressure changes as small as 20 micropascals.
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🔗 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
🔗 Related Units
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