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Stress

kgf/mm²toGPa

Convert kilograms-force per square millimetre (stress) (kgf/mm²) to gigapascals (stress) (GPa).

Factor1 kgf/mm² = 0.00980665 GPa

Converter

kgf/mm²

Accepts numbers or expressions, e.g. 150 + 14.7

Result
0.980665GPa

Rendered to 6 significant figures.

Formula

Formula
GPa = kgf/mm² × 0.00980665

Multiply any value in kilograms-force per square millimetre (stress) by 0.00980665 to obtain the value in gigapascals (stress).

Worked example

Convert 100 kgf/mm² to GPa.

  1. 01Start with 100 kgf/mm².
  2. 02Multiply by the conversion factor: 100 × 0.00980665 = 0.980665 GPa.
Result100 kgf/mm² = 0.980665 GPa

Conversion table

kgf/mm²GPa
10.0098067
20.019613
50.049033
100.098067
200.19613
500.49033
1000.98067
2001.9613
5004.9033
10009.8066

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kgf/mm² to GPa?
1 kgf/mm² equals 0.00980665 GPa. To convert, multiply the value in kilograms-force per square millimetre (stress) by 0.00980665.
How do I convert 1 kgf/mm² to GPa?
1 kgf/mm² = 0.00980665 GPa. For any value, multiply by 0.00980665.
How do I convert GPa back to kgf/mm²?
Divide by the same factor — or equivalently, multiply by 101.9716. So 1 GPa = 101.972 kgf/mm².
When would I need to convert kilogram-force per square millimetre (stress) to gigapascal (stress)?
Stress conversions between kgf/mm² and GPa 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).

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