Pascal Converter
Convert Pascal to Hectopascal 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.
HectopascalhPa
Target UnitThe hectopascal (hPa) is a metric unit of pressure defined as 100 pascals (Pa), where the pascal is the SI derived unit of pressure, equal to one newton per square meter. It is commonly used in meteorology and other scientific fields to express atmospheric pressure. The hectopascal is part of the International System of Units (SI) and simplifies the representation of pressure values, especially since atmospheric pressure at sea level is approximately 1013.25 hPa. This unit is integral to various applications in physical sciences, engineering, and daily life.
Current Use
Today, the hectopascal is widely used in meteorology to report atmospheric pressure, with values typically ranging from around 950 hPa to 1050 hPa for various weather conditions. It is also used in various engineering fields, particularly in HVAC (heating, ventilation, and air conditioning) systems, where pressure measurements are critical. The use of hPa simplifies calculations and data interpretation across diverse applications, from aviation to environmental science.
Fun Fact
The average atmospheric pressure decreases by about 12 hPa for every 100 meters of altitude gain.
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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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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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Hectopascal
pressure • Non-SI
Definition
The hectopascal (hPa) is a metric unit of pressure defined as 100 pascals (Pa), where the pascal is the SI derived unit of pressure, equal to one newton per square meter. It is commonly used in meteorology and other scientific fields to express atmospheric pressure. The hectopascal is part of the International System of Units (SI) and simplifies the representation of pressure values, especially since atmospheric pressure at sea level is approximately 1013.25 hPa. This unit is integral to various applications in physical sciences, engineering, and daily life.
History & Origin
The hectopascal was introduced in the late 20th century as part of the metric system, specifically to standardize pressure measurements in a way that was more practical than using pascals alone. The pascal itself is named after the French mathematician and physicist Blaise Pascal, who made significant contributions to fluid mechanics and pressure studies. The adoption of hectopascals helped facilitate communication and data exchange in scientific and meteorological communities globally.
Etymology: The term 'hecto' comes from the Greek word 'hekaton' meaning 'hundred', indicating that one hectopascal equals 100 pascals.
Current Use
Today, the hectopascal is widely used in meteorology to report atmospheric pressure, with values typically ranging from around 950 hPa to 1050 hPa for various weather conditions. It is also used in various engineering fields, particularly in HVAC (heating, ventilation, and air conditioning) systems, where pressure measurements are critical. The use of hPa simplifies calculations and data interpretation across diverse applications, from aviation to environmental science.
💡 Fun Facts
- •The average atmospheric pressure decreases by about 12 hPa for every 100 meters of altitude gain.
- •The hectopascal is the preferred unit for reporting atmospheric pressure in aviation, where precision is critical.
- •In everyday terms, 1 hPa is roughly equivalent to the pressure exerted by a 1-gram weight on a 1-square-centimeter area.
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🔗 Related Units
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Frequently Asked Questions
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