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Pressure

mmHgtoPa

Convert millimetres of mercury (mmHg) to pascals (Pa).

Factor1 mmHg = 133.3224 Pa

Converter

mmHg

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

Result
101325Pa

Rendered to 6 significant figures.

Formula

Formula
Pa = mmHg × 133.3224

Multiply any value in millimetres of mercury by 133.3224 to obtain the value in pascals.

Worked example

Convert 760 mmHg to Pa.

  1. 01Start with 760 mmHg.
  2. 02Multiply by the conversion factor: 760 × 133.3224 = 101325 Pa.
Result760 mmHg = 101325 Pa

Conversion table

mmHgPa
1133.32
2266.64
5666.61
101333.2
202666.4
506666.1
10013332
20026664
50066661
10001.3332e+5

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from mmHg to Pa?
1 mmHg equals 133.3224 Pa. To convert, multiply the value in millimetres of mercury by 133.3224.
How do I convert 1 mmHg to Pa?
1 mmHg = 133.322 Pa. For any value, multiply by 133.3224.
How do I convert Pa back to mmHg?
Divide by the same factor — or equivalently, multiply by 0.007500616. So 1 Pa = 0.00750062 mmHg.
When would I need to convert millimetre of mercury to pascal?
Pressure conversions between mmHg and Pa 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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