Vacuum
Torrtoµm Hg
Convert torr (vacuum) (Torr) to microns of mercury (µm Hg).
Factor1 Torr = 1000 µm Hg
Converter
Torr
Accepts numbers or expressions, e.g. 150 + 14.7
Result
µm Hg
Rendered to 6 significant figures.
Formula
Formula
µm Hg = Torr × 1000
Multiply any value in torr (vacuum) by 1000 to obtain the value in microns of mercury.
Worked example
Convert 1 Torr to µm Hg.
- 01Start with 1 Torr.
- 02Multiply by the conversion factor: 1 × 1000 = 1000 µm Hg.
Result1 Torr = 1000 µm Hg
Conversion table
| Torr | µm Hg |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 1.0000e+5 |
| 200 | 2.0000e+5 |
| 500 | 5.0000e+5 |
| 1000 | 1.0000e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Torr to µm Hg?
1 Torr equals 1000 µm Hg. To convert, multiply the value in torr (vacuum) by 1000.
How do I convert 1 Torr to µm Hg?
1 Torr = 1000 µm Hg. For any value, multiply by 1000.
How do I convert µm Hg back to Torr?
Divide by the same factor — or equivalently, multiply by 0.001. So 1 µm Hg = 0.001 Torr.
When would I need to convert torr (vacuum) to micron of mercury?
Vacuum-pressure conversions between Torr 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).