Convert pressure between psi and MPa, bar, kPa and ksi. Enter a value below, choose its unit, and the other four units update instantly. Conversion tables for common values follow the calculator.
psi to MPa conversion table
| Pressure (psi) | Pressure (MPa) |
|---|---|
| 100 psi | 0.6895 MPa |
| 150 psi | 1.034 MPa |
| 200 psi | 1.379 MPa |
| 300 psi | 2.068 MPa |
| 500 psi | 3.447 MPa |
| 1000 psi | 6.895 MPa |
| 1500 psi | 10.34 MPa |
| 2000 psi | 13.79 MPa |
| 3000 psi | 20.68 MPa |
| 5000 psi | 34.47 MPa |
| 6000 psi | 41.37 MPa |
| 10000 psi | 68.95 MPa |
MPa to psi conversion table
| Pressure (MPa) | Pressure (psi) |
|---|---|
| 0.1 MPa | 14.5 psi |
| 0.5 MPa | 72.5 psi |
| 1 MPa | 145.0 psi |
| 1.6 MPa | 232.1 psi |
| 2.5 MPa | 362.6 psi |
| 4 MPa | 580.2 psi |
| 6.4 MPa | 928.2 psi |
| 10 MPa | 1450.4 psi |
| 16 MPa | 2320.6 psi |
| 25 MPa | 3625.9 psi |
| 40 MPa | 5801.5 psi |
| 69 MPa | 10007.6 psi |
How to convert psi to MPa
One pound-force per square inch equals 6.894757 kPa, or 0.006894757 MPa. Multiply psi by 0.006894757 to get MPa, or divide by 145.0377.
- psi to MPa: MPa = psi × 0.006894757
- MPa to psi: psi = MPa × 145.0377
- bar to psi: psi = bar × 14.50377 (1 bar = 0.1 MPa)
- ksi to MPa: MPa = ksi × 6.894757 (1 ksi = 1,000 psi)
Converting tube sizes instead? Use the mm to inches fraction converter.
Where these units appear in pipe and tube specifications
- ksi and MPa are used for tensile and yield strength in ASTM tube and pipe specifications, which state both, for example 75 ksi [515 MPa] minimum tensile strength for 304 and 316.
- psi and kPa are used for test pressures. ASTM A1016, for example, sets a minimum air pressure of 150 psi [1000 kPa] for the air-underwater test of tubing.
- bar and MPa are used in European practice. PN flange classes in EN 1092-1 are named in bar, so PN 16 corresponds to 16 bar, or 1.6 MPa.
For allowable working pressures of stainless steel pipe by size and schedule, see the stainless steel pipe pressure rating chart, and for dimensions and weights the pipe schedule chart and weight calculator.
Written by Will Lee, Account Manager (Europe), TeCarve · Reviewed against ASTM / EN / ISO source documents · How we write and review our technical guides →
