# Pressure Converter

## What is the definition of pressure?

In simple words, the meaning of the word pressure can be said to be the force which is applied in a perpendicular direction to that of the surface of a certain object that too per unit area over which the same force has been distributed. Moreover, pressure is represented by the symbol, p or P. on the other hand, the gauge pressure turns out to be a pressure which is relative to ambient pressure. Finally, a number of units are put in to use in order to express pressure.

## Pressure Converter

 From Atmosphere Bar Pascal Pound-force per square inches Torr To Atmosphere Bar Pascal Pound-force per square inches Torr Formula: Atmosphere = 1 Atmosphere Enter =

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### Formulae used to convert pressure

1. The mathematical formula which is generally used in pressure conversion has been listed below –

$$P=\frac{F}{A}$$

In the above equation, p happens to be the pressure whereas F is stated to be the normal force & A represents the area of the surface on contact.

1. In addition to this, as pressure is a scalar quantity, the equation that has been mentioned below is also taken in to consideration –

$$dF_n= -pdA= -pndA$$

1. When the pressure is to be represented in the form of units & especially in the form of joules per cubic metre (J / m3, which is equal to Pa), pressure is mathematically defined in the following manner –

$$p\,= \,\frac{F \times distance}{A \times distance}\,=\,\frac{Work}{Volume}\,=\, \,\frac {Energy(J)}{Volume (m^3 ) }$$

1. In addition to this, the equation for all the points of the system that is filled by that of a constant – density fluid happens to be as follows –

$$\frac{p}{\gamma} \, + \, \frac {\nu^2}{2g}+z=const$$

In the above equation, is the pressure of the fluid while $$\gamma=pg$$  happens to be the density multiplied by acceleration of the gravity = specific weight of the fluid. $$v$$= velocity of fluid &$$g$$  is the acceleration of the gravity, $$z$$ is the elevation. On the other hand,$$\frac {p}{\gamma}$$  is nothing but the pressure head & the velocity head is represented by the following term – -$$\frac{v^2}{2b}.$$

1. Static pressure & the stagnation pressure are related by the following equation –

$$p_0= \frac{1}{2}\rho\nu^2+p$$

In the above equation,  happens to be the stagnation pressure & it is followed by  which is the flow velocity whereas the static pressure is denoted by  .

1. ### Boyle’s law

$$\pi A = k$$

1. ### Surface pressure

$$\pi =\frac{F}{l}$$

1. ### Pressure of an ideal gas

$$p=\frac{nRT}{V}$$

Here, p = absolute pressure of gas, n = amount of substance, T = absolute temperature, R = ideal gas constant & V = volume.

1. ### Liquid pressure

$$p=\rho g h$$

Here,  = liquid pressure,  = density of the liquid,  = gravity at surface of overlaying material &  = height of liquid column or even the depth within the substance

This formula can also be written in the following manner –

$$p\,=\, weight\, density \,\times \,depth$$

1. ### Bernoulli’s equation

$$\frac{p}{\gamma}+z=const$$

1. ### Kinematic pressure

$$P\,=\, \frac{p}{\rho_0}$$

1. ### Navier – Stokes equation with kinematic quantities

$$\frac{\partial u}{\partial t} + (u\bigtriangledown)u= – \bigtriangledown P\,+\,v\bigtriangledown^2 u$$

## How to use a pressure converter?

To make use of this online pressure converter, you will have to first enter the details & select the unit before you click on the calculate tab to know the answer.