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Stress

mmHgtoN/mm²

Convert millimetres of mercury (stress) (mmHg) to newtons per square millimetre (stress) (N/mm²).

Factor1 mmHg = 0.0001333224 N/mm²

Converter

mmHg

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

Result
1.33322N/mm²

Rendered to 6 significant figures.

Formula

Formula
N/mm² = mmHg × 0.0001333224

Multiply any value in millimetres of mercury (stress) by 0.0001333224 to obtain the value in newtons per square millimetre (stress).

Worked example

Convert 10000 mmHg to N/mm².

  1. 01Start with 10000 mmHg.
  2. 02Multiply by the conversion factor: 10000 × 0.0001333224 = 1.33322 N/mm².
Result10000 mmHg = 1.33322 N/mm²

Conversion table

mmHgN/mm²
10.00013332
20.00026664
50.00066661
100.0013332
200.0026664
500.0066661
1000.013332
2000.026664
5000.066661
10000.13332

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from mmHg to N/mm²?
1 mmHg equals 0.0001333224 N/mm². To convert, multiply the value in millimetres of mercury (stress) by 0.0001333224.
How do I convert 1 mmHg to N/mm²?
1 mmHg = 0.000133322 N/mm². For any value, multiply by 0.0001333224.
How do I convert N/mm² back to mmHg?
Divide by the same factor — or equivalently, multiply by 7500.616. So 1 N/mm² = 7500.62 mmHg.
When would I need to convert millimetre of mercury (stress) to newton per square millimetre (stress)?
Stress conversions between mmHg 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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