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Pressure

PatommHg

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

Factor1 Pa = 0.007500616 mmHg

Converter

Pa

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

Result
760mmHg

Rendered to 6 significant figures.

Formula

Formula
mmHg = Pa × 0.007500616

Multiply any value in pascals by 0.007500616 to obtain the value in millimetres of mercury.

Worked example

Convert 101325 Pa to mmHg.

  1. 01Start with 101325 Pa.
  2. 02Multiply by the conversion factor: 101325 × 0.007500616 = 760 mmHg.
Result101325 Pa = 760 mmHg

Conversion table

PammHg
10.0075006
20.015001
50.037503
100.075006
200.15001
500.37503
1000.75006
2001.5001
5003.7503
10007.5006

Reference values rounded to 5 significant figures for display.

FAQ

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