Vacuum
bartoinHg
Convert bar (vacuum) (bar) to inches of mercury (vacuum) (inHg).
Factor1 bar = 29.52998 inHg
Converter
bar
Accepts numbers or expressions, e.g. 150 + 14.7
Result
inHg
Rendered to 6 significant figures.
Formula
Formula
inHg = bar × 29.52998
Multiply any value in bar (vacuum) by 29.52998 to obtain the value in inches of mercury (vacuum).
Worked example
Convert 1 bar to inHg.
- 01Start with 1 bar.
- 02Multiply by the conversion factor: 1 × 29.52998 = 29.53 inHg.
Result1 bar = 29.53 inHg
Conversion table
| bar | inHg |
|---|---|
| 1 | 29.53 |
| 2 | 59.06 |
| 5 | 147.65 |
| 10 | 295.3 |
| 20 | 590.6 |
| 50 | 1476.5 |
| 100 | 2953 |
| 200 | 5906 |
| 500 | 14765 |
| 1000 | 29530 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from bar to inHg?
1 bar equals 29.52998 inHg. To convert, multiply the value in bar (vacuum) by 29.52998.
How do I convert 1 bar to inHg?
1 bar = 29.53 inHg. For any value, multiply by 29.52998.
How do I convert inHg back to bar?
Divide by the same factor — or equivalently, multiply by 0.03386389. So 1 inHg = 0.0338639 bar.
When would I need to convert bar (vacuum) to inch of mercury (vacuum)?
Vacuum-pressure conversions between bar and inHg 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).