Stress
ksitopsf
Convert kilopounds-force per square inch (stress) (ksi) to pounds-force per square foot (stress) (psf).
Factor1 ksi = 144000 psf
Converter
ksi
Accepts numbers or expressions, e.g. 150 + 14.7
Result
psf
Rendered to 6 significant figures.
Formula
Formula
psf = ksi × 144000
Multiply any value in kilopounds-force per square inch (stress) by 144000 to obtain the value in pounds-force per square foot (stress).
Worked example
Convert 1 ksi to psf.
- 01Start with 1 ksi.
- 02Multiply by the conversion factor: 1 × 144000 = 144000 psf.
Result1 ksi = 144000 psf
Conversion table
| ksi | psf |
|---|---|
| 1 | 1.4400e+5 |
| 2 | 2.8800e+5 |
| 5 | 7.2000e+5 |
| 10 | 1.4400e+6 |
| 20 | 2.8800e+6 |
| 50 | 7.2000e+6 |
| 100 | 1.44e+7 |
| 200 | 2.88e+7 |
| 500 | 7.2e+7 |
| 1000 | 1.44e+8 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ksi to psf?
1 ksi equals 144000 psf. To convert, multiply the value in kilopounds-force per square inch (stress) by 144000.
How do I convert 1 ksi to psf?
1 ksi = 144000 psf. For any value, multiply by 144000.
How do I convert psf back to ksi?
Divide by the same factor — or equivalently, multiply by 6.944444e-6. So 1 psf = 6.94444e-6 ksi.
When would I need to convert kilopound-force per square inch (stress) to pound-force per square foot (stress)?
Stress conversions between ksi and psf 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
- psf → ksipound-force per square foot (stress) → kilopound-force per square inch (stress)
- Pa → ksipascal (stress) → kilopound-force per square inch (stress)
- ksi → Pakilopound-force per square inch (stress) → pascal (stress)
- Pa → psfpascal (stress) → pound-force per square foot (stress)
- psf → Papound-force per square foot (stress) → pascal (stress)
- kPa → psfkilopascal (stress) → pound-force per square foot (stress)