Pounds per square inch to Megapascals formula
megapascals = pounds per square inch × 0.00689476
Multiply the number of pounds per square inch by 0.00689476 to get megapascals. To go the other way, multiply by 145.038 instead, or use the mpa to psi converter.
Pounds per square inch to Megapascals conversion table
Common psi to mpa values, rounded for reading. The converter above keeps full precision.
| Pounds per square inch | Megapascals |
|---|---|
| 1 psi | 0.00689476 MPa |
| 2 psi | 0.0137895 MPa |
| 3 psi | 0.0206843 MPa |
| 4 psi | 0.027579 MPa |
| 5 psi | 0.0344738 MPa |
| 10 psi | 0.0689476 MPa |
| 15 psi | 0.103421 MPa |
| 20 psi | 0.137895 MPa |
| 25 psi | 0.172369 MPa |
| 50 psi | 0.344738 MPa |
| 75 psi | 0.517107 MPa |
| 100 psi | 0.689476 MPa |
| 250 psi | 1.72369 MPa |
| 500 psi | 3.44738 MPa |
| 1,000 psi | 6.89476 MPa |
Worked example
To convert 10 psi to megapascals, multiply by 0.00689476: the result is 0.0689476 MPa. This converts pressure units only. Gauge pressure and absolute pressure need the same reference before comparison.
Frequently asked questions
How many megapascals are in a pound per square inch?
One pound per square inch equals 0.00689476 megapascals (1 psi = 0.00689476 MPa).
What is 10 pounds per square inch in megapascals?
10 psi converts to 0.0689476 MPa. Enter any other value in the converter above to see it recalculated instantly.
How do I convert megapascals back to pounds per square inch?
Reverse the calculation: one megapascal equals 145.038 pounds per square inch. You can also swap the units in the converter or open the mpa to psi page.
Related pressure conversions
Need a different pair? Open the full pressure converter to choose any two units.