Conversion Formula
$$psi = MPa \times 145.038$$
Multiply the value in Megapascal by 145.038 to get Pound per Square Inch.
MPa to psi Conversion Table
| Megapascal (MPa) | Pound per Square Inch (psi) |
|---|---|
| 0.1 | 14.5038 |
| 0.5 | 72.5189 |
| 1 | 145.038 |
| 2 | 290.075 |
| 5 | 725.189 |
| 10 | 1,450.38 |
| 25 | 3,625.94 |
| 50 | 7,251.89 |
| 100 | 14,503.8 |
| 250 | 36,259.4 |
| 500 | 72,518.9 |
| 1,000 | 145,038 |
MPa to psi in Engineering
Pressure conversions are essential across all engineering disciplines — from structural loads (PSI, ksi) to fluid systems (feet of water, mmHg) to atmospheric science (atm, mbar). Accurate pressure conversion is critical for piping design, HVAC, and geotechnical analysis.
Megapascal: Used for concrete and steel strength specifications internationally. 1 MPa = 1 N/mm².
Pound per Square Inch: Primary US customary pressure unit. Used extensively in mechanical, civil, and petroleum engineering in the United States.