So, to convert directly from bar to pounds per square inch, you multiply by 14.503774. Since atmospheric pressure is 14.696 psi - a column of air on a area of one square inch area from the Earth's surface to the space - weights 14.696 pounds. but is now replaced in almost every country except in the US by SI units. Practice Question: Convert the following units into atm: N.B.: After working. Or, you can find the single factor you need by dividing the A factor by the B factor.įor example, to convert from bar to pounds per square inch you would multiply by 100000 then divide by 6894.757. Answer is: 4.8026664 Atmospheres are equivalent to 70.56 pounds per square inches. To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into Pascals then divide by the factor for B to convert out of Pascals. To convert from Pa into units in the left columnĭivide by the value in the right column or, multiply by the reciprocal, 1/x.ĥ00000 Pa / 100000 = 5 bar Multiply by the conversion value in the right column in the table below.ĥ bar * 100000 = 500000 Pa To simply convert from any unit into pascals, for example, from 5 bar, just It is sometimes used as a reference pressure or standard pressure. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar). Where S is our starting value, C is our conversion factor, and Since atmospheric pressure at sea level is around 14.7 psi, this will be added to any pressure reading made in air at sea level. How to Convert Units of PressureĬonversions are performed by using a conversion factor. By knowing the conversion factor, converting between units can become a simple multiplication problem: Some are obvious, such as pounds per square inch, but even the SI standard Pascal is actually an expression of one Newton per square meter. Since pressure is derived from force and area, many units for pressure directly relate force to area. Where P is equal to pressure, F is the normal force and A is area. Psi (Pound Force Per Square Inch) Conversion: Psi is a pressure unit and equals to the force of one pound applied to one square inch. Conversion units for the Pressure Converter. Please visit pressure conversion to convert all pressure units. Pressure is a scalar quality reflecting how force acts on a surface. Note that we also have an individual mmHg to atm converter available. Atm (atmospheric pressure) is the force per unit area by the weight of air above that point.
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