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Pressure Conversion

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Important Notes
  • Various units are used to express pressure. The SI unit of pressure is the pascal (Pa), equal to one newton per square meter (N/m2 or kg·m−1·s−2). Similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and US customary systems. Other units of pressure such as bar, are also in common use.
  • Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure and the torr is defined as ​1⁄760 of this. Also, the technical atmosphere is 1 kgf/cm2 (98.0665 kPa, or 14.223 psi).
  • The CGS unit of pressure is the barye (Ba), equal to 1 dyn·cm−2 or 0.1 Pa.
  • Mathematically : Pressure p=F/A , where F is the magnitude of the normal force and A is the area of the surface on contact. Pressure is a scalar quantity. It relates the vector area element (a vector normal to the surface) with the normal force acting on it.
  • Manometric units such as the centimeter of water, millimeter of mercury and inch of mercury are used to express pressures in terms of the height of column of a particular fluid in a manometer.
pressure
Pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure is the pressure relative to the ambient pressure. Unit of pressure is Pascals (Pa). Types of Pressures are Absolute, Atmospheric, Differential, Gauge Pressure etc.
Atmospheric pressure is the force per unit area exerted on a surface by the weight of air above that surface in the atmosphere. The standard atmosphere (symbol: atm) is a unit of pressure equal to 101325 Pa which is equivalent to 760 mmHg (torr), 29.92 inHg, 14.696 psi. The atmospheric pressure at the sea level is equal to 760 mm of height of the column of mercury.

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The use of units, measurements and conversions plays a big part in excelling in math. The intent of this site is to help visitors perform different varieties of calculations/conversions easily with a high degree of accuracy.

The site includes unit converters for various quantities like currency, length, speed, time, area, volume, mass, temperature, angle, pressure, energy and power. In addition to this, it provides area & volume calculations of different shapes & it's parts. The site also contains several other features like number system conversion, calculation of interests, percentages along with color code finder and many more.

History of Measurement :

The earliest recorded systems of calculations and measures originate in the 3rd or 4th millennium BC. Even the very earliest civilizations needed measurement for purposes of agriculture, construction and trade. Early standard units might only have applied to a single community or small region, with every area developing its own standards for lengths, areas, volumes and masses.

With the development of manufacturing technologies and the growing importance of trade between communities and ultimately across the Earth, standardized weights and measures became critical. Starting in the 18th century, modernized, simplified and uniform systems of weights and measures were developed, with the fundamental units defined by ever more precise methods in the science of metrology.

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