When using pressure units, we usually use either MPa or PSI. That is because Pa (Pascal) is a very small unit compared to PSI. To help everybody convert MPa to PSI, we have designed a simple-to-use MPa to PSI calculator (insert MPA, get PSI) as well as a conversion chart with 0.01 MPa to 100,000 MPa converted to PSI.
Let’s first check what MPa and PSI are and how to convert MPa to PSI using a pocket calculator:
- MPa or MegaPascal is a metric unit of pressure equal to 1,000,000 Pa. 1 Pa or Pascal is a pressure that a force of 1 Newton makes on 1 square meter. Million Pascals or MPa is hence a pressure that 1,000,000 Netwons make on 1 square meter of surface area (1 MPa = 1,000,000 N/m2). Because we are using millions of Pascals, MPa is a bigger unit of pressure than PSI.
- PSI or Pounds per Square Inch is a unit of pressure used in the US and the UK. 1 PSI is a pressure that a force of 1 pound (pound-force) exerts on 1 square inch of surface area (1 PSI = 1 lbn/in2). Compared to MPa, PSI is a smaller unit of pressure.
How to convert MPa to PSI?
Easy. To convert megapascals to pounds per square inch, you only need to know 1 conversion rule:
1 MPa = 145.038 PSI
Basically, 1 MPa is equal to 145.038 PSI. For quick conversion, you can use 1 MPa is equal to 145 PSI approximation (you will make less than 0.03% conversion error). To convert MPa to PSI, you simply need to multiply the number of PSI by 145.038 (calculator below does this automatically):
Example 1: How many PSI is 25 MPa? Here is how you can calculate that:
25 MPa × 145.038 = 3,625.95 PSI
25 MPa is equal to 3,625.95 PSI.
Example 2: How many PSI is 10 MPa? Here is how you can calculate that:
10 MPa × 145.038 = 1,450.38 PSI
10 MPa is equal to 1,450.38 PSI.
Example 3: How many PSI is 1.5 MPa? Here is how you can calculate that:
1.5 MPa × 145.038 = 217.557 PSI
1.5 MPa is equal to 217.557 PSI.
As you can see, converting MPa to PSI is quite easy. You can do it with a pocket calculator. To make things simpler still, you can use the following MPa to PSI calculator and consult the conversion chart below the calculator:
MPa To PSI Calculator
As you can see, this calculator automatically converts megapascals to PSI. Let’s say you want to convert 30 MPa to PSI. Just insert ’30’ and you get the result: 30 MPa is equal to 4,351.14 PSI.
Here is the MPa to PSI conversion chart for common conversions:
Mega Pascal To PSI Conversion Table
| MPa (Mega Pascal): | PSI (Pounds Per Square Inch): |
| 0.01 MPa | 1.450 PSI |
| 0.05 MPa | 7.252 PSI |
| 0.1 MPa | 14.504 PSI |
| 0.2 MPa | 29.008 PSI |
| 0.3 MPa | 43.511 PSI |
| 0.4 MPa | 58.015 PSI |
| 0.5 MPa | 72.519 PSI |
| 0.6 MPa | 87.023 PSI |
| 0.7 MPa | 101.527 PSI |
| 0.8 MPa | 116.030 PSI |
| 0.9 MPa | 130.534 PSI |
| 1 MPa | 145.038 PSI |
| 1.5 MPa | 217.557 PSI |
| 2 MPa | 290.076 PSI |
| 3 MPa | 435.114 PSI |
| 4 MPa | 580.152 PSI |
| 5 MPa | 725.190 PSI |
| 6 MPa | 870.228 PSI |
| 7 MPa | 1,015.266 PSI |
| 8 MPa | 1,160.304 PSI |
| 9 MPa | 1,305.342 PSI |
| 10 MPa | 1,450.38 PSI |
| 15 MPa | 2,175.57 PSI |
| 20 MPa | 2,900.76 PSI |
| 25 MPa | 3,625.95 PSI |
| 30 MPa | 4,351.14 PSI |
| 35 MPa | 5,076.33 PSI |
| 40 MPa | 5,801.52 PSI |
| 45 MPa | 6,526.71 PSI |
| 50 MPa | 7,251.90 PSI |
| 60 MPa | 8,702.28 PSI |
| 70 MPa | 10,152.66 PSI |
| 80 MPa | 11,603.04 PSI |
| 90 MPa | 13,053.42 PSI |
| 100 MPa | 14,503.8 PSI |
| 150 MPa | 21,755.7 PSI |
| 200 MPa | 29,007.6 PSI |
| 250 MPa | 36,259.5 PSI |
| 300 MPa | 43,511.4 PSI |
| 350 MPa | 50,763.3 PSI |
| 400 MPa | 58,015.2 PSI |
| 450 MPa | 65,267.1 PSI |
| 500 MPa | 72,519 PSI |
| 600 MPa | 87,022.8 PSI |
| 700 MPa | 101,526.6 PSI |
| 800 MPa | 116,030.4 PSI |
| 900 MPa | 130,534.2 PSI |
| 1000 MPa (1 GPa) | 145,038 PSI |
| 10000 MPa (10 GPa) | 1,450,380 PSI |
| 100000 MPa (100 GPa) | 14,503,800 PSI |
Hopefully, you now know how to convert MPa to PSI. You can do it by hand, or use the MPa to PSI calculator and consult the conversion chart. If you have any problems converting megapascals to pounds per square inch, you can use the comments below and we will help you out.