Pressure
TorrtomH₂O
Convert torr (Torr) to metres of water column (mH₂O).
Factor1 Torr = 0.0135951 mH₂O
Converter
Torr
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mH₂O
Rendered to 6 significant figures.
Formula
Formula
mH₂O = Torr × 0.0135951
Multiply any value in torr by 0.0135951 to obtain the value in metres of water column.
Worked example
Convert 760 Torr to mH₂O.
- 01Start with 760 Torr.
- 02Multiply by the conversion factor: 760 × 0.0135951 = 10.3323 mH₂O.
Result760 Torr = 10.3323 mH₂O
Conversion table
| Torr | mH₂O |
|---|---|
| 1 | 0.013595 |
| 2 | 0.02719 |
| 5 | 0.067975 |
| 10 | 0.13595 |
| 20 | 0.2719 |
| 50 | 0.67975 |
| 100 | 1.3595 |
| 200 | 2.719 |
| 500 | 6.7975 |
| 1000 | 13.595 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Torr to mH₂O?
1 Torr equals 0.0135951 mH₂O. To convert, multiply the value in torr by 0.0135951.
How do I convert 1 Torr to mH₂O?
1 Torr = 0.0135951 mH₂O. For any value, multiply by 0.0135951.
How do I convert mH₂O back to Torr?
Divide by the same factor — or equivalently, multiply by 73.55592. So 1 mH₂O = 73.5559 Torr.
When would I need to convert torr to metre of water column?
Pressure conversions between Torr and mH₂O 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).