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Stress

psftoGPa

Convert pounds-force per square foot (stress) (psf) to gigapascals (stress) (GPa).

Factor1 psf = 4.788026e-8 GPa

Converter

psf

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

Result
4.78803GPa

Rendered to 6 significant figures.

Formula

Formula
GPa = psf × 4.788026e-8

Multiply any value in pounds-force per square foot (stress) by 4.788026e-8 to obtain the value in gigapascals (stress).

Worked example

Convert 1e+8 psf to GPa.

  1. 01Start with 1e+8 psf.
  2. 02Multiply by the conversion factor: 1e+8 × 4.788026e-8 = 4.78803 GPa.
Result1e+8 psf = 4.78803 GPa

Conversion table

psfGPa
14.788e-8
29.5761e-8
52.394e-7
104.788e-7
209.5761e-7
502.394e-6
1004.788e-6
2009.5761e-6
5002.394e-5
10004.788e-5

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from psf to GPa?
1 psf equals 4.788026e-8 GPa. To convert, multiply the value in pounds-force per square foot (stress) by 4.788026e-8.
How do I convert 1 psf to GPa?
1 psf = 4.78803e-8 GPa. For any value, multiply by 4.788026e-8.
How do I convert GPa back to psf?
Divide by the same factor — or equivalently, multiply by 2.088543e+7. So 1 GPa = 2.08854e+7 psf.
When would I need to convert pound-force per square foot (stress) to gigapascal (stress)?
Stress conversions between psf 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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