Megapascals to Pounds per square inch converter

To convert megapascals to pounds per square inch, enter the value in the first field. The result in pounds per square inch is calculated automatically using the exact conversion factor.

1 MPa ≈ 145.03773773 psi
1 psi ≈ 0.00689475729317 MPa

Formula: psi ≈ MPa × 145.03773773
MPa ≈ psi × 0.00689475729317

Definitions: 1 MPa = 1000000 Pa; 1 psi = 8896443230521/1290320000 Pa

The megapascal (MPa) is one million pascals, or one newton per square millimeter. It is the standard unit for material strength, hydraulic pressure and high-pressure equipment, and for stress in steel and concrete.

The pound per square inch (psi) is the customary United States unit of pressure, one pound-force per square inch. It is used for tire pressure, air compressors and water and gas pressure in the United States, and for tires in the United Kingdom too.

See the conversion table with commonly used values, handy for quick reference or study.