How to convert PSI to megapascals
MPa = psi × 0.006894757293
Example: 5 psi × 0.006894757293 = 0.03447378647 MPa
PSI to Megapascals table
| PSI (psi) | Megapascals (MPa) |
|---|---|
| 0.5 psi | 0.0034473786 MPa |
| 1 psi | 0.0068947573 MPa |
| 2 psi | 0.013789515 MPa |
| 3 psi | 0.020684272 MPa |
| 4 psi | 0.027579029 MPa |
| 5 psi | 0.034473786 MPa |
| 6 psi | 0.041368544 MPa |
| 7 psi | 0.048263301 MPa |
| 8 psi | 0.055158058 MPa |
| 9 psi | 0.062052816 MPa |
| 10 psi | 0.068947573 MPa |
| 15 psi | 0.10342136 MPa |
| 20 psi | 0.13789515 MPa |
| 25 psi | 0.17236893 MPa |
| 30 psi | 0.20684272 MPa |
| 40 psi | 0.27579029 MPa |
| 50 psi | 0.34473786 MPa |
| 75 psi | 0.5171068 MPa |
| 100 psi | 0.68947573 MPa |
| 250 psi | 1.7236893 MPa |
| 500 psi | 3.4473786 MPa |
| 1,000 psi | 6.8947573 MPa |
About these units
PSI (psi): Pounds per square inch (psi) is used for tyre pressure, compressors and hydraulics in the US.
Megapascals (MPa): A megapascal is 1,000,000 Pa, used for material strength and high-pressure systems.
Frequently asked questions
How many megapascals are in 1 PSI?
1 PSI equals 0.006894757293 megapascals (MPa).
How do I convert psi to MPa?
Multiply the value in PSI by 0.006894757293. For example, 5 psi × 0.006894757293 = 0.03447378647 MPa.
How do I convert megapascals back to PSI?
Multiply by 145.0377377 (or divide by 0.006894757293). 1 MPa = 145.0377377 psi.
What is a PSI?
Pounds per square inch (psi) is used for tyre pressure, compressors and hydraulics in the US.
Conversion factors come from exact international definitions (NIST SP 811, BIPM) where they exist. Results show up to 10 significant digits. Need every pressure unit at once? Use the Pressure Converter.