Vacuum
PatonTorr
Convert pascals (vacuum) (Pa) to nanotorr (vacuum) (nTorr).
Factor1 Pa = 7500617 nTorr
Converter
Pa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
nTorr
Rendered to 6 significant figures.
Formula
Formula
nTorr = Pa × 7500617
Multiply any value in pascals (vacuum) by 7500617 to obtain the value in nanotorr (vacuum).
Worked example
Convert 1 Pa to nTorr.
- 01Start with 1 Pa.
- 02Multiply by the conversion factor: 1 × 7500617 = 7.50062e+6 nTorr.
Result1 Pa = 7.50062e+6 nTorr
Conversion table
| Pa | nTorr |
|---|---|
| 1 | 7.5006e+6 |
| 2 | 1.5001e+7 |
| 5 | 3.7503e+7 |
| 10 | 7.5006e+7 |
| 20 | 1.5001e+8 |
| 50 | 3.7503e+8 |
| 100 | 7.5006e+8 |
| 200 | 1.5001e+9 |
| 500 | 3.7503e+9 |
| 1000 | 7.5006e+9 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Pa to nTorr?
1 Pa equals 7500617 nTorr. To convert, multiply the value in pascals (vacuum) by 7500617.
How do I convert 1 Pa to nTorr?
1 Pa = 7.50062e+6 nTorr. For any value, multiply by 7500617.
How do I convert nTorr back to Pa?
Divide by the same factor — or equivalently, multiply by 1.333224e-7. So 1 nTorr = 1.33322e-7 Pa.
When would I need to convert pascal (vacuum) to nanotorr (vacuum)?
Vacuum-pressure conversions between Pa and nTorr 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).