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Stress

psitoGPa

Convert pounds-force per square inch (stress) (psi) to gigapascals (stress) (GPa).

Factor1 psi = 6.894757e-6 GPa

Converter

psi

Accepts numbers or expressions, e.g. 150 + 14.7

Result
6.89476GPa

Rendered to 6 significant figures.

Formula

Formula
GPa = psi × 6.894757e-6

Multiply any value in pounds-force per square inch (stress) by 6.894757e-6 to obtain the value in gigapascals (stress).

Worked example

Convert 1.00000e+6 psi to GPa.

  1. 01Start with 1.00000e+6 psi.
  2. 02Multiply by the conversion factor: 1.00000e+6 × 6.894757e-6 = 6.89476 GPa.
Result1.00000e+6 psi = 6.89476 GPa

Conversion table

psiGPa
16.8948e-6
21.379e-5
53.4474e-5
106.8948e-5
200.0001379
500.00034474
1000.00068948
2000.001379
5000.0034474
10000.0068948

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from psi to GPa?
1 psi equals 6.894757e-6 GPa. To convert, multiply the value in pounds-force per square inch (stress) by 6.894757e-6.
How do I convert 1 psi to GPa?
1 psi = 6.89476e-6 GPa. For any value, multiply by 6.894757e-6.
How do I convert GPa back to psi?
Divide by the same factor — or equivalently, multiply by 145037.7. So 1 GPa = 145038 psi.
When would I need to convert pound-force per square inch (stress) to gigapascal (stress)?
Stress conversions between psi and GPa 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).

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