Stress
kgf/mm²toksi
Convert kilograms-force per square millimetre (stress) (kgf/mm²) to kilopounds-force per square inch (stress) (ksi).
Factor1 kgf/mm² = 1.422334 ksi
Converter
kgf/mm²
Accepts numbers or expressions, e.g. 150 + 14.7
Result
ksi
Rendered to 6 significant figures.
Formula
Formula
ksi = kgf/mm² × 1.422334
Multiply any value in kilograms-force per square millimetre (stress) by 1.422334 to obtain the value in kilopounds-force per square inch (stress).
Worked example
Convert 50 kgf/mm² to ksi.
- 01Start with 50 kgf/mm².
- 02Multiply by the conversion factor: 50 × 1.422334 = 71.1167 ksi.
Result50 kgf/mm² = 71.1167 ksi
Conversion table
| kgf/mm² | ksi |
|---|---|
| 1 | 1.4223 |
| 2 | 2.8447 |
| 5 | 7.1117 |
| 10 | 14.223 |
| 20 | 28.447 |
| 50 | 71.117 |
| 100 | 142.23 |
| 200 | 284.47 |
| 500 | 711.17 |
| 1000 | 1422.3 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kgf/mm² to ksi?
1 kgf/mm² equals 1.422334 ksi. To convert, multiply the value in kilograms-force per square millimetre (stress) by 1.422334.
How do I convert 1 kgf/mm² to ksi?
1 kgf/mm² = 1.42233 ksi. For any value, multiply by 1.422334.
How do I convert ksi back to kgf/mm²?
Divide by the same factor — or equivalently, multiply by 0.7030696. So 1 ksi = 0.70307 kgf/mm².
When would I need to convert kilogram-force per square millimetre (stress) to kilopound-force per square inch (stress)?
Stress conversions between kgf/mm² and ksi 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
- ksi → kgf/mm²kilopound-force per square inch (stress) → kilogram-force per square millimetre (stress)
- Pa → ksipascal (stress) → kilopound-force per square inch (stress)
- ksi → Pakilopound-force per square inch (stress) → pascal (stress)
- MPa → ksimegapascal (stress) → kilopound-force per square inch (stress)
- ksi → MPakilopound-force per square inch (stress) → megapascal (stress)
- MPa → kgf/mm²megapascal (stress) → kilogram-force per square millimetre (stress)