How to convert pounds per square inch to megapascals
Formula: MPa = psi × 0.00689476
Worked example: 32 psi → 32 × 0.00689476 = 0.220632 MPa
Pounds per square inch to megapascals conversion chart
| Pounds per square inch (psi) | Megapascals (MPa) |
|---|---|
| 1 psi | 0.00689476 MPa |
| 5 psi | 0.0344738 MPa |
| 10 psi | 0.0689476 MPa |
| 14.7 psi | 0.101353 MPa |
| 15 psi | 0.103421 MPa |
| 20 psi | 0.137895 MPa |
| 25 psi | 0.172369 MPa |
| 30 psi | 0.206843 MPa |
| 32 psi | 0.220632 MPa |
| 35 psi | 0.241317 MPa |
| 40 psi | 0.27579 MPa |
| 50 psi | 0.344738 MPa |
| 60 psi | 0.413685 MPa |
| 80 psi | 0.551581 MPa |
| 100 psi | 0.689476 MPa |
| 150 psi | 1.03421 MPa |
| 200 psi | 1.37895 MPa |
| 500 psi | 3.44738 MPa |
| 1,000 psi | 6.89476 MPa |
| 3,000 psi | 20.6843 MPa |
What is a pound per square inch?
The pound per square inch is the US unit of pressure, about 6,894.76 pascals. Car tires are usually inflated to 30 to 35 psi, and sea-level air pressure is 14.7 psi. Gauges often read psig, the pressure above atmospheric.
What is a megapascal?
The megapascal equals one million pascals, or 10 bar. Engineers use it for the strength of concrete and steel and for hydraulic systems: ordinary structural concrete reaches a compressive strength of 20 to 40 MPa.