▸ processconvert
Stress

psftommHg

Convert pounds-force per square foot (stress) (psf) to millimetres of mercury (stress) (mmHg).

Factor1 psf = 0.3591314 mmHg

Converter

psf

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

Result
3.59131mmHg

Rendered to 6 significant figures.

Formula

Formula
mmHg = psf × 0.3591314

Multiply any value in pounds-force per square foot (stress) by 0.3591314 to obtain the value in millimetres of mercury (stress).

Worked example

Convert 10 psf to mmHg.

  1. 01Start with 10 psf.
  2. 02Multiply by the conversion factor: 10 × 0.3591314 = 3.59131 mmHg.
Result10 psf = 3.59131 mmHg

Conversion table

psfmmHg
10.35913
20.71826
51.7957
103.5913
207.1826
5017.957
10035.913
20071.826
500179.57
1000359.13

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from psf to mmHg?
1 psf equals 0.3591314 mmHg. To convert, multiply the value in pounds-force per square foot (stress) by 0.3591314.
How do I convert 1 psf to mmHg?
1 psf = 0.359131 mmHg. For any value, multiply by 0.3591314.
How do I convert mmHg back to psf?
Divide by the same factor — or equivalently, multiply by 2.784496. So 1 mmHg = 2.7845 psf.
When would I need to convert pound-force per square foot (stress) to millimetre of mercury (stress)?
Stress conversions between psf and mmHg 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).

Related conversions