psiequation

Convert Megapascal (MPa) to Pound Per Square Inch (psi)

MPato psi conversion equationA

MPa to psi conversion equation

Above: MPa to psi conversion equation and formula

 

Convert Pound Per Square Inch (psi) to Megapascal (MPa)

 

psi to MPa conversion equation

psi to MPa conversion equation

Above: psi to MPa conversion equation and formula

Converting psi to MPa is a common task when designing metal tube applications. With that in mind, a major concern with metal tubing is its ability to withstand pressures, both external and internal. Additionally, the forces of atmospheric pressure and vacuum are factors when calculating the pressure a tube can withstand.

psi MPa Convertor

Psi MPa Pressure Gauges

The pressure that steel tube can withstand matters in determining its efficiency, safety, and reliable use. Both psi and MPa measure pressure within a metal tube. For this reason, we provide psi MPa Converter tools below.

Psi Versus Megapascal

First, both are a measure of internal pressure. However, psi is an imperial unit measurement while MPa is metric as part of SI units (International System of Units abbreviated from the French Système international).

psi, pounds per square inch equation symbol

psi equation

psiequation
pascalequation

Pressure Measurement using psi, psia, and psig

Simply put, psi or Pound-Force Per Square Inch is the measure of force in pounds exerted onto an area of one square inch. On the other hand, psia stands for psi as an absolute pressure measured relative to a complete vacuum. On the other hand, Psig considers pressure (psi) relative to atmospheric pressure (e.g. atmospheric pressure at sea level is approximately 14.7 psi).

 

Pascal equation

Pascal equation

MPa, kPa, and Pa

Painting of Blaise Pascal Versailles, French mathematician, and namesake of the pascal.

Painting of Blaise Pascal Versailles, French mathematician inventor of the Pascal.

Similarly, MPa and other measurements ending in Pa are pressure units much like psi. A Pascal, whose symbol Pa was the brainchild of Blaise Pascal, a French polymath of the 16th Century. As a result of Pascal’s many talents (e.g. Mathematician, Physicist, Poet, Inventor, and religious Philosopher), he inspired the modern-day

Theory of Probabilities. Because of Blaise’s “Pascal’s law” or “Pascal’s principle“, MPa is as ubiquitous in Europe as psi is in the United States. As an example, the aeronautics industry uses Pascal’s Principle and Hydraulics to engineer and design hydraulic systems.

Pascal’s law states that when there is an increase in pressure at any point in a confined fluid, there is an equal increase at every other point in the container. **

References

** Hodanbosi, C. and Fairman, J. (1996). Pascal’s Principle and Hydraulics. [online] Grc.nasa.gov. Available at: https://www.grc.nasa.gov/www/k-12/WindTunnel/Activities/Pascals_principle.html [Accessed 25 Apr. 2019].

pascalequation
psimpacalculator
psimpacalculator
psimpachart

Psi to MPa Conversion Chart

bar
psi
kPa
MPa
0.1
1.5
10
0.01
0.2
2.9
20
0.02
0.3
4.4
30
0.03
0.4
5.8
40
0.04
0.5
7.3
50
0.05
0.6
8.7
60
0.06
0.7
10.2
70
0.07
0.8
11.6
80
0.08
0.9
13.1
90
0.09

bar
psi
kPa
MPa
1
14.5
100
0.1
2
29.0
200
0.2
3
43.5
300
0.3
4
58.0
400
0.4
5
72.5
500
0.5
6
87.0
600
0.6
7
101.5
700
0.7
8
116.0
800
0.8
9
130.5
900
0.9

bar
psi
kPa
MPa
10
145
1,000
1
20
290
2,000
2
30
435
3,000
3
40
580
4,000
4
50
725
5,000
5
60
870
6,000
6
70
1,015
7,000
7
80
1,160
8,000
8
90
1,305
9,000
9

bar
psi
kPa
MPa
100
1,450
10,000
10
200
2,900
20,000
20
300
4,350
30,000
30
400
5,800
40,000
40
500
7,250
50,000
50
600
8,700
60,000
60
700
10,150
70,000
70
800
11,600
80,000
80
900
13,050
90,000
90
1,000
14,500
100,000
100
1,100
15,950
110,000
110
1,200
17,400
120,000
120
1,300
18,850
130,000
130
psimpachart

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