Stress
GPatopsi
Convert gigapascals (stress) (GPa) to pounds-force per square inch (stress) (psi).
Factor1 GPa = 145037.7 psi
Converter
GPa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
psi
Rendered to 6 significant figures.
Formula
Formula
psi = GPa × 145037.7
Multiply any value in gigapascals (stress) by 145037.7 to obtain the value in pounds-force per square inch (stress).
Worked example
Convert 1 GPa to psi.
- 01Start with 1 GPa.
- 02Multiply by the conversion factor: 1 × 145037.7 = 145038 psi.
Result1 GPa = 145038 psi
Conversion table
| GPa | psi |
|---|---|
| 1 | 1.4504e+5 |
| 2 | 2.9008e+5 |
| 5 | 7.2519e+5 |
| 10 | 1.4504e+6 |
| 20 | 2.9008e+6 |
| 50 | 7.2519e+6 |
| 100 | 1.4504e+7 |
| 200 | 2.9008e+7 |
| 500 | 7.2519e+7 |
| 1000 | 1.4504e+8 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from GPa to psi?
1 GPa equals 145037.7 psi. To convert, multiply the value in gigapascals (stress) by 145037.7.
How do I convert 1 GPa to psi?
1 GPa = 145038 psi. For any value, multiply by 145037.7.
How do I convert psi back to GPa?
Divide by the same factor — or equivalently, multiply by 6.894757e-6. So 1 psi = 6.89476e-6 GPa.
When would I need to convert gigapascal (stress) to pound-force per square inch (stress)?
Stress conversions between GPa and psi are routine in mechanics-of-materials work: yield, ultimate and allowable-stress specification, Young's-modulus tables and structural-design code calculations. MPa and N/mm² dominate ISO and European datasheets, psi and ksi dominate US structural codes, and kgf/cm² and kgf/mm² appear in legacy JIS and heavy-engineering documentation. Stress is the same physical dimension as pressure but a different engineering quantity — this category is mechanics-of-materials, not process pressure.
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).
Related conversions
- psi → GPapound-force per square inch (stress) → gigapascal (stress)
- Pa → GPapascal (stress) → gigapascal (stress)
- GPa → Pagigapascal (stress) → pascal (stress)
- Pa → psipascal (stress) → pound-force per square inch (stress)
- psi → Papound-force per square inch (stress) → pascal (stress)
- kPa → psikilopascal (stress) → pound-force per square inch (stress)