Pascal Converter
Convert Pascal to Inch Mercury 60 176 F 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.
Inch of MercuryinHg
Target UnitAn inch of mercury (inHg) is a unit of pressure defined as the pressure exerted at the base of a vertical column of mercury precisely one inch high, at standard gravity. Specifically, it is equivalent to the pressure exerted by a mercury column of 1 inch (25.4 mm) in height at a temperature of 0°C (32°F). This unit is commonly used in meteorology, aviation, and various engineering applications to quantify atmospheric pressure and vacuum pressure. The measurement is crucial for understanding weather patterns and calibrating barometers.
Current Use
Today, the inch of mercury is widely utilized in various fields such as meteorology, aviation, and engineering. Meteorologists use inHg to report atmospheric pressure, helping to predict weather conditions. In aviation, pilots rely on barometric pressure settings in inches of mercury for altimeter calibration, ensuring safe altitude measurements. Additionally, vacuum systems in laboratories and industrial processes often use inHg to specify vacuum levels.
Fun Fact
Mercury is nearly 14 times denser than water, making it suitable for barometers.
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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
Inch of Mercury
pressure • Non-SI
Definition
An inch of mercury (inHg) is a unit of pressure defined as the pressure exerted at the base of a vertical column of mercury precisely one inch high, at standard gravity. Specifically, it is equivalent to the pressure exerted by a mercury column of 1 inch (25.4 mm) in height at a temperature of 0°C (32°F). This unit is commonly used in meteorology, aviation, and various engineering applications to quantify atmospheric pressure and vacuum pressure. The measurement is crucial for understanding weather patterns and calibrating barometers.
History & Origin
The concept of measuring pressure using a column of liquid dates back to the 17th century, when Italian scientist Evangelista Torricelli invented the barometer in 1643. Torricelli's work established the relationship between atmospheric pressure and the height of a liquid column. The use of mercury became standard due to its density and stability, leading to the adoption of the inch of mercury as a practical unit of measurement.
Etymology: The term 'inch of mercury' derives from the physical properties of mercury (Hg), a dense liquid metal, and the imperial unit of length, the inch.
Current Use
Today, the inch of mercury is widely utilized in various fields such as meteorology, aviation, and engineering. Meteorologists use inHg to report atmospheric pressure, helping to predict weather conditions. In aviation, pilots rely on barometric pressure settings in inches of mercury for altimeter calibration, ensuring safe altitude measurements. Additionally, vacuum systems in laboratories and industrial processes often use inHg to specify vacuum levels.
💡 Fun Facts
- •Mercury is nearly 14 times denser than water, making it suitable for barometers.
- •The inch of mercury is still commonly used in the United States and a few other countries, despite the metrication trend.
- •The phrase 'inches of mercury' is often used in everyday language to refer to high or low pressure systems in weather discussions.
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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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