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Stress

psitokgf/mm²

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

Factor1 psi = 0.0007030696 kgf/mm²

Converter

psi

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

Result
0.70307kgf/mm²

Rendered to 6 significant figures.

Formula

Formula
kgf/mm² = psi × 0.0007030696

Multiply any value in pounds-force per square inch (stress) by 0.0007030696 to obtain the value in kilograms-force per square millimetre (stress).

Worked example

Convert 1000 psi to kgf/mm².

  1. 01Start with 1000 psi.
  2. 02Multiply by the conversion factor: 1000 × 0.0007030696 = 0.70307 kgf/mm².
Result1000 psi = 0.70307 kgf/mm²

Conversion table

psikgf/mm²
10.00070307
20.0014061
50.0035153
100.0070307
200.014061
500.035153
1000.070307
2000.14061
5000.35153
10000.70307

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from psi to kgf/mm²?
1 psi equals 0.0007030696 kgf/mm². To convert, multiply the value in pounds-force per square inch (stress) by 0.0007030696.
How do I convert 1 psi to kgf/mm²?
1 psi = 0.00070307 kgf/mm². For any value, multiply by 0.0007030696.
How do I convert kgf/mm² back to psi?
Divide by the same factor — or equivalently, multiply by 1422.334. So 1 kgf/mm² = 1422.33 psi.
When would I need to convert pound-force per square inch (stress) to kilogram-force per square millimetre (stress)?
Stress conversions between psi 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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