How many psi are in one MPa?
One MPa is about 145.03773773 psi.
Convert Pound per square inch (psi) to Megapascal (MPa) instantly.
Calculation
value × 0.00689475729317
| Quick Conversion | Converted |
|---|---|
| 1 psi | 0.006895 MPa |
| 5 psi | 0.034474 MPa |
| 10 psi | 0.068948 MPa |
| 100 psi | 0.689476 MPa |
| 1,000 psi | 6.894757 MPa |
Pound per square inch is a pressure unit based on one pound-force applied over one square inch.
Psi became common in US customary pressure measurement and remains widely used on gauges and equipment labels.
psi is used for tires, compressors, hydraulics, pneumatics, pressure gauges, industrial equipment, and service documentation.
A megapascal is an SI pressure unit equal to one million pascals.
MPa became common in engineering because high pressure and stress values are easier to read at the million-pascal scale.
MPa is used in materials engineering, hydraulics, pressure vessels, mechanical design, structural analysis, and industrial specifications.
Mathematically, megapascal (MPa) = pound per square inch (psi) converted with the formula below.
1 psi = 0.006895 MPa
1 MPa = 145.037738 psi
Formula: value × 0.00689475729317
Example: 15 psi = 0.103421 MPa
Precision note: Use 1 MPa = 145.03773773 psi. Preserve precision for pressure ratings, design checks, and safety limits.
1 psi = 0.006895 MPa
1 MPa = 145.037738 psi
| Pound per square inch [psi] | Megapascal [MPa] |
|---|---|
| 0.01 psi | 0.000069 MPa |
| 0.1 psi | 0.000689 MPa |
| 1 psi | 0.006895 MPa |
| 2 psi | 0.01379 MPa |
| 5 psi | 0.034474 MPa |
| 10 psi | 0.068948 MPa |
| 20 psi | 0.137895 MPa |
| 50 psi | 0.344738 MPa |
| 100 psi | 0.689476 MPa |
One MPa is about 145.03773773 psi.
3000 psi is about 20.68427188 MPa.
Use MPa for high pressure or stress values where kPa numbers would be large.