Bar and psi both are the units, considered when we have to perform pressure measurement. Both of these units are of the highly used group, well first what a unit is, and the unit is the standard in terms of the unit the measurement is done. For example, we have 3, this is just a value If we add a bar to it,

## bar to psi

that means 3 bar, this gives the information that there is some pressure, which is the quantity taken into consideration and in addition to that the value or magnitude of the weight is 3.

Mainly here in this section, we have two unit bar and psi

**About bar. **

- Well, a bar is the unit of pressure, which is used when we have high pressure that we need to measure.
- One bar is equal to 100,000 Pascal, this means that it is required to have 100,000 Pascal then we can say that pressure applied is equal to one bar.
- Well, bar as the unit was introduced by the Vilhelm Bjerknes, who is one of the great’s scientists of his time.

**About psi. **

- Well, if you imagine how much is a psi, then all you have to do I to take a surface and apply a force of one pound is the area of one square inch, this equates to one psi of pressure.
- Well, psi is the US customary unit.
- One psi is equal to 6,895 Pascal, well this is a very high amount of pressure.

**Conversion, **

We have one bar is equal to 14.53 psi. This shows that there is a large differs between both bar and psi as a pressure measurement unit.

- 2 bar is equal to 29.00 psi
- 3 bar is equal to 43.511 psi
- 4 bar is equal to 72.51 psi.