Stress
hPatopsi
Convert hectopascals (stress) (hPa) to pounds-force per square inch (stress) (psi).
Factor1 hPa = 0.01450377 psi
Converter
hPa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
psi
Rendered to 6 significant figures.
Formula
Formula
psi = hPa × 0.01450377
Multiply any value in hectopascals (stress) by 0.01450377 to obtain the value in pounds-force per square inch (stress).
Worked example
Convert 100 hPa to psi.
- 01Start with 100 hPa.
- 02Multiply by the conversion factor: 100 × 0.01450377 = 1.45038 psi.
Result100 hPa = 1.45038 psi
Conversion table
| hPa | psi |
|---|---|
| 1 | 0.014504 |
| 2 | 0.029008 |
| 5 | 0.072519 |
| 10 | 0.14504 |
| 20 | 0.29008 |
| 50 | 0.72519 |
| 100 | 1.4504 |
| 200 | 2.9008 |
| 500 | 7.2519 |
| 1000 | 14.504 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from hPa to psi?
1 hPa equals 0.01450377 psi. To convert, multiply the value in hectopascals (stress) by 0.01450377.
How do I convert 1 hPa to psi?
1 hPa = 0.0145038 psi. For any value, multiply by 0.01450377.
How do I convert psi back to hPa?
Divide by the same factor — or equivalently, multiply by 68.94757. So 1 psi = 68.9476 hPa.
When would I need to convert hectopascal (stress) to pound-force per square inch (stress)?
Stress conversions between hPa 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 → hPapound-force per square inch (stress) → hectopascal (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)
- psi → kPapound-force per square inch (stress) → kilopascal (stress)
- MPa → psimegapascal (stress) → pound-force per square inch (stress)