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Stress

ksitokgf/mm²

Convert kilopounds-force per square inch (stress) (ksi) to kilograms-force per square millimetre (stress) (kgf/mm²).

Factor1 ksi = 0.7030696 kgf/mm²

Converter

ksi

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

Result
35.1535kgf/mm²

Rendered to 6 significant figures.

Formula

Formula
kgf/mm² = ksi × 0.7030696

Multiply any value in kilopounds-force per square inch (stress) by 0.7030696 to obtain the value in kilograms-force per square millimetre (stress).

Worked example

Convert 50 ksi to kgf/mm².

  1. 01Start with 50 ksi.
  2. 02Multiply by the conversion factor: 50 × 0.7030696 = 35.1535 kgf/mm².
Result50 ksi = 35.1535 kgf/mm²

Conversion table

ksikgf/mm²
10.70307
21.4061
53.5153
107.0307
2014.061
5035.153
10070.307
200140.61
500351.53
1000703.07

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from ksi to kgf/mm²?
1 ksi equals 0.7030696 kgf/mm². To convert, multiply the value in kilopounds-force per square inch (stress) by 0.7030696.
How do I convert 1 ksi to kgf/mm²?
1 ksi = 0.70307 kgf/mm². For any value, multiply by 0.7030696.
How do I convert kgf/mm² back to ksi?
Divide by the same factor — or equivalently, multiply by 1.422334. So 1 kgf/mm² = 1.42233 ksi.
When would I need to convert kilopound-force per square inch (stress) to kilogram-force per square millimetre (stress)?
Stress conversions between ksi and kgf/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).

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