Pressure
mmHgtoTorr
Convert millimetres of mercury (mmHg) to torr (Torr).
Factor1 mmHg = 1 Torr
Converter
mmHg
Accepts numbers or expressions, e.g. 150 + 14.7
Result
Torr
Rendered to 6 significant figures.
Formula
Formula
Torr = mmHg × 1
Multiply any value in millimetres of mercury by 1 to obtain the value in torr.
Worked example
Convert 760 mmHg to Torr.
- 01Start with 760 mmHg.
- 02Multiply by the conversion factor: 760 × 1 = 760 Torr.
Result760 mmHg = 760 Torr
Conversion table
| mmHg | Torr |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 5 | 5 |
| 10 | 10 |
| 20 | 20 |
| 50 | 50 |
| 100 | 100 |
| 200 | 200 |
| 500 | 500 |
| 1000 | 1000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mmHg to Torr?
1 mmHg equals 1 Torr. To convert, multiply the value in millimetres of mercury by 1.
How do I convert 1 mmHg to Torr?
1 mmHg = 1 Torr. For any value, multiply by 1.
How do I convert Torr back to mmHg?
Divide by the same factor — or equivalently, multiply by 0.9999999. So 1 Torr = 1 mmHg.
When would I need to convert millimetre of mercury to torr?
Pressure conversions between mmHg and Torr are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
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).