Stress
kgf/mm²toN/mm²
Convert kilograms-force per square millimetre (stress) (kgf/mm²) to newtons per square millimetre (stress) (N/mm²).
Factor1 kgf/mm² = 9.80665 N/mm²
Converter
kgf/mm²
Accepts numbers or expressions, e.g. 150 + 14.7
Result
N/mm²
Rendered to 6 significant figures.
Formula
Formula
N/mm² = kgf/mm² × 9.80665
Multiply any value in kilograms-force per square millimetre (stress) by 9.80665 to obtain the value in newtons per square millimetre (stress).
Worked example
Convert 10 kgf/mm² to N/mm².
- 01Start with 10 kgf/mm².
- 02Multiply by the conversion factor: 10 × 9.80665 = 98.0665 N/mm².
Result10 kgf/mm² = 98.0665 N/mm²
Conversion table
| kgf/mm² | N/mm² |
|---|---|
| 1 | 9.8066 |
| 2 | 19.613 |
| 5 | 49.033 |
| 10 | 98.067 |
| 20 | 196.13 |
| 50 | 490.33 |
| 100 | 980.66 |
| 200 | 1961.3 |
| 500 | 4903.3 |
| 1000 | 9806.6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kgf/mm² to N/mm²?
1 kgf/mm² equals 9.80665 N/mm². To convert, multiply the value in kilograms-force per square millimetre (stress) by 9.80665.
How do I convert 1 kgf/mm² to N/mm²?
1 kgf/mm² = 9.80665 N/mm². For any value, multiply by 9.80665.
How do I convert N/mm² back to kgf/mm²?
Divide by the same factor — or equivalently, multiply by 0.1019716. So 1 N/mm² = 0.101972 kgf/mm².
When would I need to convert kilogram-force per square millimetre (stress) to newton per square millimetre (stress)?
Stress conversions between kgf/mm² and N/mm² 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
- N/mm² → kgf/mm²newton per square millimetre (stress) → kilogram-force per square millimetre (stress)
- Pa → N/mm²pascal (stress) → newton per square millimetre (stress)
- N/mm² → Panewton per square millimetre (stress) → pascal (stress)
- MPa → N/mm²megapascal (stress) → newton per square millimetre (stress)
- N/mm² → MPanewton per square millimetre (stress) → megapascal (stress)
- MPa → kgf/mm²megapascal (stress) → kilogram-force per square millimetre (stress)