Pascal Converter
Convert Pascal to Torr 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.
TorrTorr
Target UnitThe torr is a unit of pressure that is defined to be exactly 1/760 of one standard atmosphere (atm). It is named after the Italian physicist Evangelista Torricelli, who invented the barometer in 1643. The torr is commonly used in various scientific fields, particularly in meteorology, physics, and vacuum technology. One torr is equivalent to 133.322 pascals (Pa), making it a convenient unit for expressing low pressures. The unit is widely utilized in laboratory settings and industrial applications where precise pressure measurements are essential.
Current Use
Today, the torr is widely used in laboratories and industrial settings for measuring pressure in vacuum systems and other applications. It is favored for its convenience in expressing low pressures, particularly in scientific research where high precision is required. The torr is also utilized in meteorology to report atmospheric pressure measurements, enabling meteorologists to forecast weather patterns effectively. Although the pascal has become the SI standard unit for pressure, the torr remains prevalent in several fields due to its historical significance and ease of use.
Fun Fact
The torr is defined based on the atmospheric pressure at sea level, which is why it is closely related to the standard atmosphere.
Convert Pascal to Torr (Pa to Torr)
Convert Pascals (Pa) to Torr. While Pascals are the SI standard, many legacy systems, particularly in vacuum manufacturing and medicine, still use Torr. This tool allows for precise conversion for equipment calibration.
Divide Pascals by roughly 133.3. For example, 1000 Pa ÷ 133.322 ≈ 7.5 Torr.
Pascal (Pa)
Definition
One Newton of force per square meter of area.
Origins & History
Replaced the 'bar' and 'atm' in formal science in 1971.
Torr (Torr)
Definition
Equal to 1 millimeter of mercury.
Origins & History
Based on the column of mercury supported by atmospheric pressure.
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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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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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Torr
pressure • Non-SI
Definition
The torr is a unit of pressure that is defined to be exactly 1/760 of one standard atmosphere (atm). It is named after the Italian physicist Evangelista Torricelli, who invented the barometer in 1643. The torr is commonly used in various scientific fields, particularly in meteorology, physics, and vacuum technology. One torr is equivalent to 133.322 pascals (Pa), making it a convenient unit for expressing low pressures. The unit is widely utilized in laboratory settings and industrial applications where precise pressure measurements are essential.
History & Origin
The torr was named after Evangelista Torricelli, an Italian scientist who invented the barometer in the 17th century. His work laid the foundation for the understanding of atmospheric pressure, leading to the establishment of the torr as a unit of measurement. The definition of the torr was officially adopted in the 20th century as part of the International System of Units (SI) framework, although it is not an SI unit itself.
Etymology: The term 'torr' is derived from the name of Evangelista Torricelli, reflecting his contributions to the field of fluid mechanics and pressure measurement.
Current Use
Today, the torr is widely used in laboratories and industrial settings for measuring pressure in vacuum systems and other applications. It is favored for its convenience in expressing low pressures, particularly in scientific research where high precision is required. The torr is also utilized in meteorology to report atmospheric pressure measurements, enabling meteorologists to forecast weather patterns effectively. Although the pascal has become the SI standard unit for pressure, the torr remains prevalent in several fields due to its historical significance and ease of use.
💡 Fun Facts
- •The torr is defined based on the atmospheric pressure at sea level, which is why it is closely related to the standard atmosphere.
- •One torr is equivalent to approximately 1.33322 millibars (mbar), making it easy to convert to other pressure units commonly used in meteorology.
- •The torr was once commonly used in the field of aerodynamics before the widespread adoption of pascals.
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