Pressure Conversion Calculator

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Pressure Description

Pressure is the force exerted on or against an object or surface (by something in contact with it) per unit area over which the force is spread. The definition of physical force is important in order to understand pressure, as they are related. Force is an interaction, which if unresisted, will change the movement of an object and also might cause the said object to accelerate, slow down, remain its position or reshape/deform. Force can also be defined as a push or pull. The standard unit of force is Newton.

Pressure variations depend on the amount of applied force and on the size of the area it is applied over. The universal symbol for pressure is p or P. The common units of measure for pressure are Pascal, newton per square meter, pound per square inch, bar, atmosphere.

There are several types of pressure such as Absolute pressure, Atmospheric pressure, Differential pressure, Gauge pressure, Hydrostatic pressure, Vapor pressure.

Pressure Conversion Table

(some results are rounded)
Atmospheres Bars Inches of Mercury Millibars Pascals Pounds per Square Inch Torrs
1 Atmosphere = 1 1.0133 29.9213 1013 101325 14.6959 760
1 Bar = 0.9869 1 29.53 1000 100000 14.5038 750.0617
1 Inch of Mercury = 0.0334 0.0339 1 33.8639 3386 0.4912 25.4
1 Millibar = 0.00098692 0.001 0.0295 1 100 0.0145 0.7501
1 Pascal = 9.8692 x 10-6 1 x 10-5 0.0002953 0.01 1 0.00014504 0.007501
1 Pound per Square Inch = 0.068 0.0689 2.036 68.9476 6895 1 51.7149
1 Torr = 0.001316 0.001333 0.0394 1.3332 133.3224 0.0193 1