Pounds per square inch to Megapascals converter

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

1 psi ≈ 0.00689475729317 MPa
1 MPa ≈ 145.03773773 psi

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

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

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.

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.

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