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Stress

MPatoN/mm²

Convert megapascals (stress) (MPa) to newtons per square millimetre (stress) (N/mm²).

Factor1 MPa = 1 N/mm²

Converter

MPa

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

Result
100N/mm²

Rendered to 6 significant figures.

Formula

Formula
N/mm² = MPa × 1

Multiply any value in megapascals (stress) by 1 to obtain the value in newtons per square millimetre (stress).

Worked example

Convert 100 MPa to N/mm².

  1. 01Start with 100 MPa.
  2. 02Multiply by the conversion factor: 100 × 1 = 100 N/mm².
Result100 MPa = 100 N/mm²

Conversion table

MPaN/mm²
11
22
55
1010
2020
5050
100100
200200
500500
10001000

Reference values rounded to 5 significant figures for display.

FAQ

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

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