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Pressure is a physical quantity that measures the force exerted per unit area on a surface. It is defined as the force applied perpendicular to a given area. Pressure is a crucial concept in fluid mechanics, thermodynamics, and other areas of physics and engineering. In the International System of Units (SI), pressure is measured in pascals (Pa), which is equivalent to one newton per square meter (1 Pa = 1 N/m²).
To convert pressure from one unit to another, you can use conversion factors. Here are some common pressure units and their conversions:
Pascal (Pa): The SI unit of pressure. One pascal is equal to one newton per square meter.
Bar (bar): Often used in atmospheric and industrial applications. One bar is equal to 100,000 pascals (1 bar = 100,000 Pa).
Atmosphere (atm): A unit commonly used to express atmospheric pressure. One atmosphere is approximately equal to the average atmospheric pressure at sea level, which is about 101,325 pascals (1 atm = 101,325 Pa).
Pound per square inch (psi): Commonly used in the United States, especially for measuring tire pressure and other industrial applications. One pound per square inch is approximately equal to 6,894.76 pascals (1 psi = 6,894.76 Pa).
To convert between these pressure units, use the following conversion factors:
To convert from pascals to bars: Divide the pressure in pascals by 100,000.
To convert from pascals to atmospheres: Divide the pressure in pascals by 101,325.
To convert from pascals to pounds per square inch: Divide the pressure in pascals by 6,894.76.
To convert from bars to pascals: Multiply the pressure in bars by 100,000.
To convert from bars to atmospheres: Divide the pressure in bars by 1.01325.
To convert from bars to pounds per square inch: Multiply the pressure in bars by 14.5038.
To convert from atmospheres to pascals: Multiply the pressure in atmospheres by 101,325.
To convert from atmospheres to bars: Multiply the pressure in atmospheres by 1.01325.
To convert from atmospheres to pounds per square inch: Multiply the pressure in atmospheres by 14.696.
To convert from pounds per square inch to pascals: Multiply the pressure in psi by 6,894.76.
To convert from pounds per square inch to bars: Divide the pressure in psi by 14.5038.
To convert from pounds per square inch to atmospheres: Divide the pressure in psi by 14.696.