Stress
psitohPa
Convert pounds-force per square inch (stress) (psi) to hectopascals (stress) (hPa).
Factor1 psi = 68.94757 hPa
Converter
psi
Accepts numbers or expressions, e.g. 150 + 14.7
Result
hPa
Rendered to 6 significant figures.
Formula
Formula
hPa = psi × 68.94757
Multiply any value in pounds-force per square inch (stress) by 68.94757 to obtain the value in hectopascals (stress).
Worked example
Convert 1 psi to hPa.
- 01Start with 1 psi.
- 02Multiply by the conversion factor: 1 × 68.94757 = 68.9476 hPa.
Result1 psi = 68.9476 hPa
Conversion table
| psi | hPa |
|---|---|
| 1 | 68.948 |
| 2 | 137.9 |
| 5 | 344.74 |
| 10 | 689.48 |
| 20 | 1379 |
| 50 | 3447.4 |
| 100 | 6894.8 |
| 200 | 13790 |
| 500 | 34474 |
| 1000 | 68948 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from psi to hPa?
1 psi equals 68.94757 hPa. To convert, multiply the value in pounds-force per square inch (stress) by 68.94757.
How do I convert 1 psi to hPa?
1 psi = 68.9476 hPa. For any value, multiply by 68.94757.
How do I convert hPa back to psi?
Divide by the same factor — or equivalently, multiply by 0.01450377. So 1 hPa = 0.0145038 psi.
When would I need to convert pound-force per square inch (stress) to hectopascal (stress)?
Stress conversions between psi and hPa 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
- hPa → psihectopascal (stress) → pound-force per square inch (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)