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Vacuum

kPatommHg

Convert kilopascals (vacuum) (kPa) to millimetres of mercury (vacuum) (mmHg).

Factor1 kPa = 7.500616 mmHg

Converter

kPa

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

Result
750.062mmHg

Rendered to 6 significant figures.

Formula

Formula
mmHg = kPa × 7.500616

Multiply any value in kilopascals (vacuum) by 7.500616 to obtain the value in millimetres of mercury (vacuum).

Worked example

Convert 100 kPa to mmHg.

  1. 01Start with 100 kPa.
  2. 02Multiply by the conversion factor: 100 × 7.500616 = 750.062 mmHg.
Result100 kPa = 750.062 mmHg

Conversion table

kPammHg
17.5006
215.001
537.503
1075.006
20150.01
50375.03
100750.06
2001500.1
5003750.3
10007500.6

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kPa to mmHg?
1 kPa equals 7.500616 mmHg. To convert, multiply the value in kilopascals (vacuum) by 7.500616.
How do I convert 1 kPa to mmHg?
1 kPa = 7.50062 mmHg. For any value, multiply by 7.500616.
How do I convert mmHg back to kPa?
Divide by the same factor — or equivalently, multiply by 0.1333224. So 1 mmHg = 0.133322 kPa.
When would I need to convert kilopascal (vacuum) to millimetre of mercury (vacuum)?
Vacuum-pressure conversions between kPa and mmHg are common in vacuum-chamber instrumentation, pump-down endpoint specification, semiconductor and deposition process work, freeze-drying, electron-microscopy column pressure, vacuum metallurgy and HVAC / refrigeration service. Torr, mmHg and inHg dominate manometric vacuum gauges; mbar is standard on European instruments; micron Hg and mTorr cover high-vacuum work; Pa and kPa are the SI references. This category is vacuum / instrumentation intent — dimensionally the same as pressure, but kept separate so process-pressure searches and vacuum searches stay on the right page.
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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