Vacuum
Patombar
Convert pascals (vacuum) (Pa) to millibars (vacuum) (mbar).
Factor1 Pa = 0.01 mbar
Converter
Pa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mbar
Rendered to 6 significant figures.
Formula
Formula
mbar = Pa × 0.01
Multiply any value in pascals (vacuum) by 0.01 to obtain the value in millibars (vacuum).
Worked example
Convert 100 Pa to mbar.
- 01Start with 100 Pa.
- 02Multiply by the conversion factor: 100 × 0.01 = 1 mbar.
Result100 Pa = 1 mbar
Conversion table
| Pa | mbar |
|---|---|
| 1 | 0.01 |
| 2 | 0.02 |
| 5 | 0.05 |
| 10 | 0.1 |
| 20 | 0.2 |
| 50 | 0.5 |
| 100 | 1 |
| 200 | 2 |
| 500 | 5 |
| 1000 | 10 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Pa to mbar?
1 Pa equals 0.01 mbar. To convert, multiply the value in pascals (vacuum) by 0.01.
How do I convert 1 Pa to mbar?
1 Pa = 0.01 mbar. For any value, multiply by 0.01.
How do I convert mbar back to Pa?
Divide by the same factor — or equivalently, multiply by 100. So 1 mbar = 100 Pa.
When would I need to convert pascal (vacuum) to millibar (vacuum)?
Vacuum-pressure conversions between Pa and mbar 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).