Vacuum
µbartoµm Hg
Convert microbar (vacuum) (µbar) to microns of mercury (µm Hg).
Factor1 µbar = 0.7500617 µm Hg
Converter
µbar
Accepts numbers or expressions, e.g. 150 + 14.7
Result
µm Hg
Rendered to 6 significant figures.
Formula
Formula
µm Hg = µbar × 0.7500617
Multiply any value in microbar (vacuum) by 0.7500617 to obtain the value in microns of mercury.
Worked example
Convert 1 µbar to µm Hg.
- 01Start with 1 µbar.
- 02Multiply by the conversion factor: 1 × 0.7500617 = 0.750062 µm Hg.
Result1 µbar = 0.750062 µm Hg
Conversion table
| µbar | µm Hg |
|---|---|
| 1 | 0.75006 |
| 2 | 1.5001 |
| 5 | 3.7503 |
| 10 | 7.5006 |
| 20 | 15.001 |
| 50 | 37.503 |
| 100 | 75.006 |
| 200 | 150.01 |
| 500 | 375.03 |
| 1000 | 750.06 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from µbar to µm Hg?
1 µbar equals 0.7500617 µm Hg. To convert, multiply the value in microbar (vacuum) by 0.7500617.
How do I convert 1 µbar to µm Hg?
1 µbar = 0.750062 µm Hg. For any value, multiply by 0.7500617.
How do I convert µm Hg back to µbar?
Divide by the same factor — or equivalently, multiply by 1.333224. So 1 µm Hg = 1.33322 µbar.
When would I need to convert microbar (vacuum) to micron of mercury?
Vacuum-pressure conversions between µbar and µm Hg 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).