Pressure
MPatopsi
Convert megapascals (MPa) to pounds-force per square inch (psi).
Factor1 MPa = 145.0377 psi
Converter
MPa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
psi
Rendered to 6 significant figures.
Formula
Formula
psi = MPa × 145.0377
Multiply any value in megapascals by 145.0377 to obtain the value in pounds-force per square inch.
Worked example
Convert 10 MPa to psi.
- 01Start with 10 MPa.
- 02Multiply by the conversion factor: 10 × 145.0377 = 1450.38 psi.
Result10 MPa = 1450.38 psi
Conversion table
| MPa | psi |
|---|---|
| 1 | 145.04 |
| 2 | 290.08 |
| 5 | 725.19 |
| 10 | 1450.4 |
| 20 | 2900.8 |
| 50 | 7251.9 |
| 100 | 14504 |
| 200 | 29008 |
| 500 | 72519 |
| 1000 | 1.4504e+5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from MPa to psi?
1 MPa equals 145.0377 psi. To convert, multiply the value in megapascals by 145.0377.
How do I convert 1 MPa to psi?
1 MPa = 145.038 psi. For any value, multiply by 145.0377.
How do I convert psi back to MPa?
Divide by the same factor — or equivalently, multiply by 0.006894757. So 1 psi = 0.00689476 MPa.
When would I need to convert megapascal to pound-force per square inch?
Pressure conversions between MPa and psi are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).