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Pressure

mmHgtoN/mm²

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

Factor1 mmHg = 0.0001333224 N/mm²

Converter

mmHg

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

Result
0.133322N/mm²

Rendered to 6 significant figures.

Formula

Formula
N/mm² = mmHg × 0.0001333224

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

Worked example

Convert 1000 mmHg to N/mm².

  1. 01Start with 1000 mmHg.
  2. 02Multiply by the conversion factor: 1000 × 0.0001333224 = 0.133322 N/mm².
Result1000 mmHg = 0.133322 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 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 to newton per square millimetre?
Pressure conversions between mmHg and N/mm² are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
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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