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Stress

N/mm²tokPa

Convert newtons per square millimetre (stress) (N/mm²) to kilopascals (stress) (kPa).

Factor1 N/mm² = 1000 kPa

Converter

N/mm²

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

Result
1000kPa

Rendered to 6 significant figures.

Formula

Formula
kPa = N/mm² × 1000

Multiply any value in newtons per square millimetre (stress) by 1000 to obtain the value in kilopascals (stress).

Worked example

Convert 1 N/mm² to kPa.

  1. 01Start with 1 N/mm².
  2. 02Multiply by the conversion factor: 1 × 1000 = 1000 kPa.
Result1 N/mm² = 1000 kPa

Conversion table

N/mm²kPa
11000
22000
55000
1010000
2020000
5050000
1001.0000e+5
2002.0000e+5
5005.0000e+5
10001.0000e+6

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from N/mm² to kPa?
1 N/mm² equals 1000 kPa. To convert, multiply the value in newtons per square millimetre (stress) by 1000.
How do I convert 1 N/mm² to kPa?
1 N/mm² = 1000 kPa. For any value, multiply by 1000.
How do I convert kPa back to N/mm²?
Divide by the same factor — or equivalently, multiply by 0.001. So 1 kPa = 0.001 N/mm².
When would I need to convert newton per square millimetre (stress) to kilopascal (stress)?
Stress conversions between N/mm² and kPa 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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